5BUTTRICK J. The inside contract system. The Journal of Economic History, 1952, 12 (3): 205-221.
6CHIESA V, MANZINI R. Organizing for technological collabora- tions: a managerial perspective [J]. R&D Management, 1998 (28) : 199 -212.
7JUSSI L, KAIJA L. Sources of Sensitization, Cross - reactions, and Occupational Sensitization to Topical Anaesthetics among General Dermatology Patients [ J ]. Contact Dermatitis, 2009, 60 ( 3 ) : 150 - 154.
8ORGANISCIA P. Why bother? examining the motivations of users in large scale crowd - powered online initiatives [ D ]. University of Alberta, Master of Arts, 2010 Fall.
9SUROWIECKI J. The Wisdom of Crowds : Why the Many are Snrar- ter than the Few and How Collective Wisdom Shapes Business, E- conomies, Societies, and Nations [ M ]. New York: Doubleday, 2004.