5Brockmun J B,Director S W.The schema-besed approach to workflow management[J].Computer-Aided Design of Integrated Circuits and System,2005,14(10):1257-1267. 被引量：1
6Nuu C J.The evolution towards flexible workflow systems[J].Distributed Systems,Engineering,2006,3(4):276-294. 被引量：1
7Kurt W,Scott H,Robert S.Building systems form commercial components[M].[s.l.]:Addison-Wesley,2003. 被引量：1
8Hoporoft J E.Motwuni R,Ullman J D.Introduction to Automata Theory[J].Languages and Computation,2002,6(3)1350-359. 被引量：1
