@unpublished{publication-5831,
	author={Osterloh, Margit and Frey, Bruno S},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 27},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Motivation, Knowledge Transfer, and Organizational Forms},
	year=1999,
}