Sjöström J, Donnellan B, Helfert M. Product Semantics in Design Research Practice [Internet]. Bhattacherjee A, Fitzgerald B. Shaping the Future of ICT Research. Methods and Approaches. Springer Berlin Heidelberg; 2012. pp. 35-48. http://dx.doi.org/10.1007/978-3-642-35142-6_3