Grafmüller, L. K., S. Hankammer, S. Hönigsberg, and H. Wache. “Developing Complex, Mass-Customized Products in SME Networks: Perspectives From Co-Creation, Solution Space Development, and Information System Design”. International Journal of Industrial Engineering and Management, vol. 9, no. 4, Dec. 2018, pp. 215-27, doi:10.24867/IJIEM-2018-4-215.