Book » On the Origin of Products, The Evolution of Product Innovation and Design
Arthur Eger & Huub Ehlhardt

Cambridge University Press | ISBN: 9781316638187 | paperback | 305 pages | 2018

In this work, Arthur O. Eger and Huub Ehlhardt present a ‘Theory of Product Evolution’. They challenge the popular notion that we owe the availability of products solely to genius inventors. Instead, they present arguments that show that a process of variation, selection, and accumulation of ‘know-how’ (to make) and ‘know-what’ (function to realize) provide an explanation for the emergence of new types of products and their subsequent development into families of advanced versions. This theory employs a product evolution diagram as an analytical framework to reconstruct the development history of a product family and picture it as a graphical narrative. The authors describe the relevant literature and case studies to place their theory in context. The ‘Product Phases Theory’ is used to create predictions on the most likely next step in the evolution of a product, offering practical tools for those involved in new product development.

Reviews & endorsements:

“This book is written at the crossroads of theory-informed engineering and practice-informed technology studies. It should be obligatory reading for industrial designers and product developers as it demonstrates how theoretical understanding of the relations between science, technology, and society can improve product design. But also vice versa: the many examples of product development that are revisited with a designer’s eye, show that design practice can fruitfully inform theories of technology development.” Wiebe E. Bijker, Universiteit Maastricht and Norges Teknisk-Naturvitenskapelige Universitet, Norway

“Theory and practice of product design have evolved strongly in a rather short period. This book describes this development in a detailed way and will, no doubt, be an important resource for research in regard to knowledge and practice of product innovation and design.” Wim Crouwel, Professor Emeritus, Technische Universiteit Delft, The Netherlands

“While evolutionary thinking about innovation has been popular among historians and economists, few have applied it to design and marketing. Based on a thorough reading of theories and a rich set of empirical examples, this book provides a new way for designers to think about new product development in a comprehensive manner.” Koen Frenken, Universiteit Utrecht, The Netherlands

“This book enriches the conceptual framework concerning the evolution of man-made artifacts, and also offers convincing tools for product strategy and design; a considerable contribution to theory and practice.” Hans Dirken, Former Rector Magnificus of the Technische Universiteit Delft and Dean of Industrial Design Engineering Faculty of the Technische Universiteit Delft, The Netherlands

Book » Graphic Design on Paper, Screens, and Products

183 pages, Boom Lemma Uitgevers, Amsterdam, Nederland, 2015, ISBN 9789089536266

This book wants to offer a textbook that helps to create good, effective and aesthetically pleasing graphic designs. The book handles two aspects of graphic design. Firstly the effect of graphic design: What is the message to be communicated? To whom? And with which means? Subjects that are addressed, are Websites, magazines, newsletters, brochures, reports and books. Secondly, this book describes the graphic design used on products and related to products: operator panels, packaging and product graphics.

Book » An Introduction to Evolutionary Product Development

Arthur Eger, with contributions by Huub Ehlhardt & Ferry Vermeulen
978‐94‐6236‐058‐7 | paperback | 141 pages | 2013
978-94-6094-758-2 | ebook | 141 pages | 2013

The concept of product phases is related to the economic (or marketing) product life cycle (m-plc). Both consist of six phases. Introducing product phases opens up the possibility to analyze the relationships between the different fields of industrial design: ergonomics, marketing, construction and styling.

Book » Product Design

Arthur Eger, Maarten Bonnema, Eric Lutters and Mascha van der Voort
978‐94‐90947‐80‐4 | paperback | 304 pages | 2012

Designers create and develop new or improved products. Designing is based on trial and error processes. In the course of the design process, the designer will generate solutions without the guarantee that these will work. By testing the solution, designers experiment: trial. Sometimes, the idea does not work: error. When the idea does look viable, the designer is one step closer to the goal.

Books published in English

    • “On the Origin of Products, The Evolution of Product Innovation and Design”; co-author: Huub Ehlhardt , 305 pages, Cambridge University Press, Cambridge, New York, Port Melbourne, New Delhi, Singapore, 2018, ISBN: 9781316638187 (paperback) and ISBN: 9781107187658 (hardback)
    • “Graphic Design on Paper, Screens, and Products”; 183 pages, Boom Lemma Uitgevers, Amsterdam, Nederland, 2015, ISBN 9789089536266
    • “Proceedings of the 16th International Conference on Engineering and Product Design Education (E&PDE 2014)”, University of Twente, The Netherlands. Eds.: Erik Bohemia, Arthur Eger, Wouter Eggink, Ahmed Kovacevic, Brian Parkinson, Wessel Wits, 753 pages, 2014, ISBN: 9781904670568.
    • “An Introduction to Evolutionary Product Development”; with contributions by Huub Ehlhardt & Ferry Vermeulen, 141 pages, Eleven International Publishing, The Hague, The Netherlands, 2013, ISBN 9789462360587.
    • “Product Design”; co-authors: Maarten Bonnema, Eric Lutters, Mascha van der Voort, 294 pages, Eleven International Publishing, The Hague, The Netherlands, 2013, ISBN 9789490947804.
    • “Evolutionary Product Development”; Lemma, The Hague, The Netherlands, 2007.

Books published in Dutch

Author

  • “Less is More / Less is a Bore” (Catalogue for the exhibition on the occasion of the retirement of Prof. Arthur Eger from the University of Twente), Museum TwentseWelle and University of Twente, 2015.
  • “Grafische Vormgeving voor Industrieel Ontwerpers”; (subject: graphic design), 2010, Lemma, Den Haag.
  • “Evolutionaire Productontwikkeling”; Lemma, Den Haag, 2007.
  • “Van het eerste uur. Grondleggers van de Faculteit Industrieel Ontwerpen”; (subject: the History of the Faculty of Industrial Design Engineering at the Delft University of Technology), November 2004, TU Delft, Delft.
  • “Create the Future”; Inaugural lecture, University of Twente, September 2004, Enschede.
  • “Productontwikkeling en verpakkingsontwerp; checklisten marketing management modellen”; (subjects: product design and packaging design), Kluwer Bedrijfswetenschappen, Deventer, 1997; in 1998 these checklists were published digital as well.
  • “Succesvolle produktontwikkeling”; (subject: Product Development), Kluwer Bedrijfswetenschappen, Deventer, 1996.
  • “Decoratieve kunst”; (subject: Decorative Art), Uitgeverij Cantecleer, De Bilt, 1995.
  • “Digitaal vormgeven”; (subject: Desk Top Publishing), Uitgeverij Cantecleer, De Bilt, 1991.
  • “Innovatiekunde, Handboek bij de Leergang Innovatiekunde”; (subject: Innovation), Kluwer Studiecentrum, 1987.

Editor, Co-author

  • “Productontwerpen”; (subject: Product Design) Lemma, Utrecht, 1st printing: 2004, 2nd printing: 2006, 3rd printing: 2008, 4th completely revised printing: 2010.
  • “Vormgeven aan flexibele woonwensen”; (subject: Architecture), Uitgeverij Delwel, ‘s-Gravenhage, 1991.
  • “De nieuwe doelgroep”; (subject: Architecture), Slokker, Huizen, 1990.
  • “Tekst in beeld”; (Dutch version of “Type & Colour”, by Michael Beaumont, subject: Graphic Design) Uitgeverij Cantecleer, De Bilt, 1988.
  • “Stadsbewegwijzering, verslag van het symposium”; (subject: Signposting), Proceedings of the symposium, Studiecentrum Verkeerstechniek SVT, May 1978.
  • “Linksaf, rechtsaf, alsmaar rechtdoor”; (subject: Signposting), catalogue with an exhibition, GVN, 1976.

Publications in journals and magazines

  • “On the Origin of Products”; Product, Vol. 26, no 3, p. 23, juni 2018, ISSN 0929-7081.
  • “De Evolutie van de E-Bike”; Product, Vol. 26, no 3, p. 20-22, juni 2018,ISSN 0929-7081.
  • “On the Origin of Products ( II ); 产品的起源(); Co-author: H. Ehlhardt, Zhuang Shi Magazine, Vol. 60, No 4, p. 61-67, April 2018, Tsinghua University, Beijing, China, ISSN 0412-3662.
  • “On the Origin of Products ( I ); 产品的起源(一)”; Co-author: H. Ehlhardt, Zhuang Shi Magazine, Vol. 60, No 2, p. 68-76, February 2018, Tsinghua University, Beijing, China, ISSN 0412-3662.
  • “Less is More, Less is a Bore; 少即是多 I 少即是乏味”; Zhuang Shi Magazine, Vol. 59, No 6, p. 62-73, June 2017, Tsinghua University, Beijing, China, ISSN 0412-3662.
  • “Evolutionary Product Development Can Map Status Quo and Future of a Product; 产品演化发展科学模板能够描绘一件产品的现状与未来”; Co-author: H. Ehlhardt, Zhuang Shi Magazine, Vol. 57, No 11, p. 60-71, November 2015, Tsinghua University, Beijing, China, ISSN 0412-3662.
  • “Product Design for Elderly, Using Their Formative Years, Their Age Effect and the Influence of the Present; 为老年人做产品设计:综合考量成长期、年龄效应以及当下的影响”; Co-author: H. Mulhof, Zhuang Shi Magazine, Vol. 55, No 11, p. 54-63, November 2013, Tsinghua University, Beijing, China, ISSN 0412-3662.
  • “Mood Boards for Their Own Formative Years help Students Design Better for Elderly People”; Co-author: H. Mulhof; Proceedings of the 15th International Conference on Engineering and Product Design Education, p. 434-439, Ed. Bohemia, Ion, Kovacevic, Lawlor, McGrath, McMahon, Parkinson, Reilly, Ring, Simpson and Tormey, 5 & 6 September 2013, Dublin Institute of Technology, Dublin, Ireland, ISBN 9781904670421.
  • “Nieuwe serie topevenementen”; Co-author: W. Poelman, Product, Vol. 21, no 4, pp. 20-21, August 2013, ISSN 0929-7081.
  • “Kring voor industrieel ontwerpers, Programma R60”; Product, Vol. 21, no 1, pp. 18-19, February 2013, ISSN 0929-7081.
  • “Symposium Platform Product & Service Design”; Product, Vol. 20, no 6, pp. 22-23, December 2012, ISSN 0929-7081.
  • “Twintig Jaar Product: een Terugblik”; Product, Vol. 20, no 6, pp. 19-21, December 2012, ISSN 0929-7081.
  • “Evolutionary Product Development as a Design Tool”; Co-auteur: J.W. Drukker, Journal of Design Research, vol. 10, no 3, 2012, pp. 141-154, ISSN 1748-3050 (print); 1569-1551 (online).
  • “(Back) To the Future;(回)望未来”; Zhuang Shi Magazine, Vol. 54, No 9, p. 43-51, September 2012 , Tsinghua University, Beijing, China, ISSN 0412-3662.
  • “A ‘Diagnosis Tool’ for Innovation Created with the Aid of Design Students”; Proceedings of the 14th International Conference on Engineering and Product Design Education, Co-author: F. Vermeulen, 6 & 7 September 2012, Artesis University College, Antwerp, Belgium, ISBN 9781904670360.
  • “Leesvoer: Overal Robots”; Product, Vol. 20, no 4, pp. 27-28, August 2012, ISSN 0929-7081.
  • “Programma R60”; Product, Vol. 20, no 4, pp. 22, August 2012, ISSN 0929-7081.
  • “Boeiende bijeekomsten: MaterialDesign, R60 en Product”; Product, Vol. 20, no 3, pp. 28, May 2012, ISSN 0929-7081.
  • “Leesvoer: The Delft Innovation Method”; Product, Vol. 20, no 3, pp. 24-25, May 2012, ISSN 0929-7081.
  • “Onderzoek naar Betekenisgeving bij het Ontwerpen van een Dienstauto”; authors: Zhou Fangzhen and Zhu Yi, translation and editor: Arthur Eger, Product, Vol. 20, no 2, pp. 20-22, April 2012, ISSN 0929-7081.
  • “Donkervoort D8 GT; 汽车; 莫巴克花瓶 (Mobach Vase)”, Zhuang Shi Magazine, Vol. 54, No 4, p. 36-37, April 2012 , Tsinghua University, Beijing, China, ISSN 0412-3662.
  • “To the Future”; Product, Vol. 20, no 1, pp. 16-18, February 2012, ISSN 0929-7081.
  • “Voorspellingen in 1998: Back to the Future”; Product, Vol. 19, no. 6, pp. 28-30, december 2011.
  • “To the Future”; Product, Vol. 20, no 1, pp. 16-18, February 2012.
  • “Voorspellingen in 1998: Back to the Future”; Product, Vol. 19, no. 6, pp. 28-30, December 2011.
  • “Framing Fonts”; About Typography in the Western World, with Niko Spelbrink, Zhuang Shi Magazine, Vol 53, no. 9, pp. 54-59, September 2011.
  • “Knowledge Exchange between Master and PhD Students with regard to Evolutionary Product Development”, with Robert Wendrich, Proceedings of the 13th International Conference on Engineering and Product Design Education, City University (London); 8-9 September 2011; The Design Society.
  • “Leesvoer: De Wereld breekt Open”; Product, Vol. 19, no. 4, pp. 15, July 2011.
  • “Duurzaam en Maatschappelijk Ondernemen”; Product, Vol. 19, no. 4, pp. 10-11, July 2011.
  • “Stop Kernenergie! Over 15 jaar is elektriciteit vrijwel gratis”; O2 Nederland: Creative Network for Sustainability, vol. 19, no. 1, pp. 33-35, June 2011.
  • “Leveringsvoorwaarden voor Industrieel Ontwerpers”; Product, Vol. 19, no. 2, pp. 26-27, April 2011.
  • “Green Roots: When – and Why – Design turned Green (Part 3)”; with J.W. Drukker and M. van Velzen, Zhuang Shi Magazine, Vol. 52, No 11, p. 48-53, November 2010, Tsinghua University, Beijing, China.
  • “Green Roots: When – and Why – Design turned Green (Part 2)”; with J.W. Drukker and M. van Velzen, Zhuang Shi Magazine, Vol. 52, No 10, p. 48-55, Oktober 2010, Tsinghua University, Beijing, China.
  • “Leesvoer! Beeldtaal, Perspectieven voor makers en gebruikers”; Product 5, September 2010, p.14-15.
  • “Green Roots: When – and Why – Design turned Green (Part 1)”; with J.W. Drukker and M. van Velzen, Zhuang Shi Magazine, Vol. 52, No 9, p. 48-55, September 2010, Tsinghua University, Beijing, China.
  • “About the Resemblance between the Chinese Taotie and Works of Art from other Cultures, like Aztec, Maya, and Haida”; Zhuang Shi Magazine, Vol. 52, No 5, p. 38-47, May 2010, Tsinghua University, Beijing, China.
  • “Uitwisseling China”; with J.W. Hoftijzer, Product 3, May 2010, p. 8-11.
  • “Leesvoer: Innovatie uit de Polder”; Product 1, February 2010, p. 13.
  • “Phases of product development: A qualitative complement to the product life cycle”; with J.W. Drukker, Design Issues, 26, 2, 2010, p. 47-58.
  • “Oudere gebruikers stellen andere eisen aan een product”; Product 6, November 2009, p. 6-8.
  • “Leesvoer: Het Ontwerpproces in de Praktijk”; Product 5, September 2009, p. 26.
  • “Evolutionary Product Development in Working-Class Housing, in: Bringing the World Into Culture on Comparative Methodologies in Architecture, Design, Art, and Science, Liber Amicorum offered to Professor Richard Foqué”; L. Lee (Carnegie Mellon University), P. Lombaerde (University College Antwerp) and L. van Duin (Delft University of Technology)(ed.), 2009, University Press Antwerp (UPA).
  • “Leesvoer: Integrated Design and Engineering”; Product 4, July 2009, p. 21.
  • “Productgrafiek”; Product 3, May 2009, p. 6-8.
  • “Evolutionary Product Development, Zhuang Shi Magazine, Vol. 51, No 2, February 2009, Tsinghua University, Beijing, China.
  • “Leesvoer: Basisvaardigheden voor de productvormgever”; Product 1, January 2009, p. 29.
  • “Designprijzen: de meest bekroonden”; Product 1, January 2009, p.22-23.
  • “Zhuang Shi Magazine en Product”; Product 1, January 2009, p. 20.
  • “Evolutionary Product Development”; in: Design United 3, catalogue with the 3TU exhibition in Eindhoven, 18-26 October 2008, p. 14-16.
  • “Productontwikkeling: zelf ontwikkelen of uitbesteden?”; Product 2, March 2008, p. 6-8.
  • “Adding value by design”; Plastics Innovations 2, vol 1, February 2008, p. 24-33.
  • “Designprijzen: de meest bekroonden”; Product 1, January 2008, p. 28-29.
  • “De Nederlandse Designprijzen”; product 6, November 2007, p. 18-19.
  • “Evolutionaire Productontwikkeling (deel 2)”; Product 5, September 2007, p. 20-22.
  • “Evolutionaire Productontwikkeling (deel 1)”; Product 4, July 2007, p. 24-26.
  • “Wordt het nog wat met mass customisation en co-creation?”; Product 3, May 2007, p.12-13.
  • “Designprijzen: de meest bekroonden”; Product 1, January 2007, p. 28.
  • “Evolutionary Product Development”; Proceedings of the Design History Conference 2006 “Evolution and Design”, Faculty of Industrial Design Engineering, TU Delft.
  • “De Nederlandse Designprijzen”; product 6, November 2006, p. 7.
  • “Keuzegids Hoger Onderwijs 2005/06”; Product 2, March 2006, p.34-35.
  • “Designprijzen: de meest bekroonden”; Product 1, January 2006, p.13.
  • “Jan Lucassen”; Product 6, November 2005, p. 12-14.
  • “International Design Yearbook 2005”; Product 5, September 2005, p.39-40.
  • “A study into students’ interests in industrial design engineering using a gender pattern analysis”; with Stilma, M.D.C.; Oost, E.C.J. van; Reinders, A.H.M.E.; Proceedings of the 3rd E&PDE, Crossing Design Boundaries (E&PDE05), (Rodgers, P.; Brodhurst,L.; Hepburn, D. (Eds.)), Edinburgh, pp. 145-150, (2005), September 15-16, (2005), Organised by: Napier University, Presented by: Stilma, M.D.C.
  • “Emerging technology design. A new master course aimed at bringing emerging technologies its break trough applications”; with Boer, A. de, in: Proceedings of the 3rd E&PDE, Crossing Design Boundaries, (Rodgers, P.; Brodhurst,L.; Hepburn, D. (Eds.)), Taylor & Francis/Balkema, Edinburgh, September 2005, p. 121-126.
  • “Frans van der Put”; Product 3, May 2005, p. 9-13.
  • “Ben van Berkel: architectuur en industrieel ontwerpen”; Product 2, March 2005, p. 28-31.
  • “Morf: een klein, onooglijk monster”; Product 2, March 2005, p. 13.
  • “De Gulden Snede en het Kindchenschema”; Product 1, January 2005, p. 23-25.
  • “Keuzegids Hoger Onderwijs”; Product 1, January 2005, p. 12-13.
  • “Stopping Power – Nieuwe uitgave van boeken Dutch Design”; Product 6, November 2004.
  • “Designprijzen: de meest bekroonden”; Product 6, November 2004.
  • “Create the Future: an environment for excellence in teaching future-oriented industrial design engineering”; with Lutters, D. en van Houten, F.J.A.M., in: “The Changing Face of Design Education”, September 2004, TU Delft, Delft.
  • “35 jaar”; Product 4, July 2004.
  • “Het laatste woord is aan Jan Jacobs”; Product 3, May 2004.
  • “Boeken: ‘Vision & Precision’ en ‘Bright Minds, Beautiful Ideas'”; Product 2, March 2004.
  • “Wim over Wim en Wim”; Product 1, January 2004.
  • “Designprijzen: de meest bekroonden”; Product 4, July 2003.
  • “Product Publieksprijs”; Product 4, July 2003.
  • “Gérard van Eyk”; Product 3, May 2003.
  • “Aat Marinissen”; Product 2, March 2003.
  • “Johannes Eekels”; Product 1, January 2003.
  • “Hans Dirken”; Product 6, November 2002.
  • “Bernd Schierbeek”; Product 5, September 2002.
  • “Emile Truijen”; Product 4, July 2002.
  • “Publicatieprijs voor productergonomen”; Product 3, May 2002.
  • “Joost van der Grinten”; Product 3, May 2002.
  • “Branch monitor 2000”; Product 3, May 2002.
  • “De gevolgen van innovaties”; Product 2, March 2002.
  • “Dutch Design”; Product 2, March 2002.
  • “Wim Crouwel”; Product 2, March 2002.
  • “Dilemma’s van een jurylid”; Product 6, November 2001.
  • “Do Droog Design”; Product 5, September 2001.
  • “Interface wil duurzaam ontwikkelen en produceren”; Product 5, September 2001.
  • “Virtual Reality in Productontwikkeling”; Product 5, September 2001.
  • “Spin-off van ruimtevaart”; Product 3, May 2001.
  • “Infrastructurele projecten”; Product 3, May 2001.
  • “Meer winst dankzij industrieel ontwerpen?”; in: “Design for All, Documentatie Ouderen en Technologie”, KITTZ, Groningen, April 2001.
  • “De HEMA-ontwerpwedstrijd”; Product 2, March 2001.
  • “Wat is uw ontwerpbureau waard? “; Product 2, March 2001.
  • “Gio: meest bekroonden”; Product 1, January 2001.
  • “Kunnen ingenieurs alles maken?”; Product 4, July 2000.
  • “Games”; Product 4, July 2000.
  • “Lees mij (gerust)”; Vormberichten 5, BNO Amsterdam, May 2000.
  • “Verpakkingen”; Product 2, March 2000.
  • “De vormgeving van product”; Product 1, January 2000.
  • “Productniveaus”; Product 6, December 1999.
  • “Maslow en Foot”; Product 5, September 1999.
  • “Wants worden needs”; Product 2, April 1999.
  • “Demografische verschuivingen”; Produkt 3, April 1998.
  • “Verstorende innovaties, deel 1 en 2”; Produkt 1, January 1998, Produkt 2, March 1998.
  • “Form follows function”; Produkt 6, October 1997.
  • “De toekomst voorspellen, 54 topmanagers uit de VS komen niet verder dan het extrapoleren van het heden”; Produkt 5, August 1997.
  • “Mooie auto’s deugen niet”; Nieuwstribune 5, February 1995.
  • “Produktniveaus bepalend voor vormgeving, promotie en presentatie (1 en 2)”; Nieuwstribune 47 en 48, November, December 1993.
  • “Produktbeleid en industrieel ontwerpen”; cursusboek NaBoNT cursus, March 1991.
  • “How the ‘product level’ can map the status quo and future of a product”; in: “Proceedings of the world conference on packaging”; IAPRI, April 1991.
  • “Van produktontwikkeling naar produktintroductie”; in: “Succesvolle produktintroducties”; Marketing & Communications Center, Amsterdam, 1990.
  • “Produktniveaus voorspellen gebruikerswensen”; Design 3, 1989, 24-28.
  • “Checklist Innovatie”; in: “Management Checklists, praktijkervaring van topadviseurs”; Publis Uitgeversbedrijf, Omega Boek, Amsterdam, 1988.
  • “Checklist Creativiteitstechnieken”; in: “Management Checklists, praktijkervaring van topadviseurs”; Publis Uitgeversbedrijf, Omega Boek, Amsterdam, 1988.
  • “Een methode om de toekomst te voorspellen”; in: “Management, M&M-kongres 1988, deel 6”; Door-praktijktrainers, Doorn.
  • “Ideevindingstechnieken voor het oplossen van (ontwerp)problemen”; De Constructeur 3, March 1987.
  • “Ideevindingstechnieken”; Industrieel ontwerpen 9, February 1987, 18-19.
  • “Innovatiekunde: valt er iets te voorspellen?”; De Bedrijfskundige 4, 1987.
  • “Wie ontwerpt er eigenlijk?”; in: “Holland in vorm”; Stichting Holland in vorm, ‘s-Gravenhage, 1987.
  • “Raster graphics/video met de computer”; met Peter Vons en Erik Jansen, Compres 20, October 1981.
  • “Tekenen met de computer”; met Peter Vons en Erik Jansen, Compres 16, 31-37, August 1981.
  • “Werktekenen met de computer”; Compres 11, 15-19, May 1980.
  • “Computer aided design of graphic symbols”; in: “Processing of visible language”, 1979, 519-524, Plenum Press, New York.
  • “Pictogrammen, deel 1, 2 en 3”; Compres (1979), resp. nr. 6, 15-25, nr. 7, 25-29, nr. 8, 17-21.
  • “Een lettertype”; GVN Bulletin 22, February 1979, 15-19.
  • “Alternative traffic signs”; in: “Archigraphia”; 1978, Graphis Press, Zürich, Switzerland
  • “Ontwikkeling van alternatieve verkeerstekens”; in: “Sociale verkeerskunde”; editing: J.A. Michon en H.H. van der Molen, June 1977, 31-32.
  • “Verkeerssignalering, proeve van een nieuwe symboliek”; Verkeerstechniek 24 (1973), 620-621.