@article {62,
	title = {Open Source Software and the {\textquoteleft}{\textquoteleft}Private-Collective{\textquoteright}{\textquoteright} Innovation Model: Issues for Organization Science},
	journal = {Organization Science},
	volume = {14},
	number = {2},
	year = {2003},
	pages = {208--223},
	publisher = {Tims Institute of Management Science},
	author = {von Hippel, Eric and Georg von Krogh}
}
