Baldwin, Carliss Y., and Kim B. Clark. "The Architecture of Participation: Does Code Architecture Mitigate Free Riding in the Open Source Development Model?" Management Science 52, no. 7 (July 2006).
Baldwin, Carliss Y., and Kim B. Clark. "The Architecture of Cooperation: Does Code Architecture Mitigate Free Riding in the Open Source Development Model?" Harvard Business School Working Paper, No.