@article {1970946,
	title = {On Design, Verification, and Dynamic Modification of the Problem-Based Scientific Workflow Model},
	journal = {Simulation Modeling Practice and Theory},
	volume = {15},
	year = {2007},
	month = {2007},
	keywords = {BIS, Business Analytics},
	author = {Liu,X. and Wanchun,D. and Chen,J. and Fan,Shaokun and Cheung,S. C. and Cai,S.}
}
