von Hippel E. Democratizing Innovation. MIT Press; 2005. Abstract
von Hippel E, von Krogh G. Open Source Software and the ``Private-Collective'' Innovation Model: Issues for Organization Science. Organization Science. 2003;14:208-23.
von Hippel E. Exploring the Open Source Software Phenomenon: Issues for Organization Science.. 2002. Abstract  Download: hippelkrogh.pdf (139.17 KB)
von Hippel E. Horizontal innovation networks- by and for users.. 2002. Abstract  Download: vonhippel3.pdf (370.42 KB)
von Hippel E. Open Source Shows the Way - Innovation By and For Users - No Manufacturer Required.. 2001. Abstract  Download: evhippel-osuserinnovation.pdf (32.32 KB)
Harhoff D, Henkel J, von Hippel E. Profiting From Voluntary Information Spillovers: How Users Benefit By Freely Revealing Their Innovations.. 2000. Abstract  Download: evhippel-voluntaryinfospillover.pdf (124.45 KB)