@conference{OmSc09,
	author = {Abrehet Mohammed Omer and Alexander Schill},
	title = {Dependency-Based Automatic Service Composition Using Directed Graph},
	booktitle = {nwesp},
	year = {2009},
	pages = {76-81},
	address = {Prague, CzechTourism Republic},
	month = {9},
	organization = {IEEE Computer Society}
}