@inbook{98e38072f4504f0eabfd5958ae6dfdae,
title = "Business models in open source software value creation",
author = "M. Sepp{\"a}nen and N. Helander and S. M{\"a}kinen",
note = "poistettu tupla r=1213<br/>Contribution: organisation=teta,FACT1=0.5<br/>Contribution: organisation=tita,FACT2=0.5",
year = "2007",
language = "English",
isbn = "978-1-59140-999-1",
pages = "578--589",
editor = "K. St.Amant and B. Still",
booktitle = "Handbook of Research on Open Source Software: Technological, Economic, and Social Perspectives",
}