I. Alam, “Interacting with Customers in the New Product Development Process,” In: K. B. Kahn, Ed., The PDMA Handbook of New Product Development, 2nd Edition, John Wiley & Sons, Inc., Hoboken, 2005, pp. 249-262.
 W. M. Cohen, R. R. Nelson and J. P. Walsh, “Links and Impacts: The Influence of Public Research on Industrial R&D,” Management Science, Vol. 48, No. 1, 2002, pp. 1-23.
 A. Griffin, “Obtaining Customer Needs for Product Development,” In: K. B. Kahn, Ed., The PDMA Handbook of New Product Development, 2nd Edition, John Wiley & Sons, Inc., Hoboken, 2005, pp. 211-227.
 C. A. Un, A. Cuervo-Cazurra and K. Asakawa, “R&D Collaborations and Product Innovation,” Journal of Product Innovation Management, Vol. 27, No. 5, 2010, pp. 673-689.
 A. Maglyas, U. Nikula and K. Smolander, “What Do Practitioners Mean When They Talk about Product Management?” Proceedings of the 20th IEEE International Requirements Engineering Conference, Chicago, 24-28 September 2012, pp. 261-266.
 M. Mottonen, J. Harkonen, P. Belt, H. Haapasalo and J. Simila, “Managerial View on Design for Manufacturing,” Industrial Management and Data Systems, Vol. 109, No. 6, 2009, pp. 859-872.
 T. Gorschek, A. Gomes, A. Pettersson and R. Torkar, “Introduction of a Process Maturity Model for MarketDriven Product Management and Requirements Engineering,” Journal of Software: Evolution and Process, Vol. 24, No. 1, 2012, pp. 83-113. http://dx.doi.org/10.1002/smr.535
 N. D. Fogelstrom, T. Gorschek, M. Svahnberg and P. Olsson, “The Impact of Agile Principles on Market-Driven Software Product Development,” Journal of Software Maintenance and Evolution, Vol. 22, No. 1, 2010, pp. 53-80. http://dx.doi.org/10.1002/spip.420
 C. A. Un and A. Cuervo-Cazurra, “Interactions with Custo-mers for Innovation,” In: L. A. Costanzo and R. B. MacKay, Eds., Handbook of Research on Strategy and Foresight, Edward Elgar Publishing Limited, Northampton, 2009.
 M. A. Kaulio, “Customer, Consumer and User Involvement in Product Development: A Framework and a Review of Selected Methods,” Total Quality Management, Vol. 9, No. 1, 1998, pp. 141-149.
 J. M. Bonner, “Customer Interactivity and New Product Performance: Moderating Effects of Product Newness and Product Embeddedness,” Industrial Marketing Management, Vol. 39, No. 3, 2010, pp. 485-492.
 B. Hillebrand and W. G. Biemans, “Dealing with Downstream Customers: An Exploratory Study,” Journal of Business and Industrial Marketing, Vol. 26, No. 2, 2011, pp. 72-80.
 J. Majava, J. Harkonen and H. Haapasalo, “The Relations between Stakeholders and Product Development Drivers: Practitioners’ Perspectives,” International Journal of Innovation and Learning, in press.
 E. Berggren and T. Nacher, “Introducing New Products Can Be Hazardous to Your Company: Use the Right New-Solutions Delivery Tools,” Academy of Management Executive, Vol. 15, No. 3, 2001, pp. 92-101.