@article {67510,
	title = {An improved heuristic for two-machine flow shop scheduling with an availability constraint and nonresumable jobs},
	journal = {4OR4OR},
	volume = {8},
	year = {2010},
	month = {2010},
	pages = {87-99},
	isbn = {1614-2411},
	author = {Hadda, Hatem and Dridi, Najoua and Hajri-Gabouj, Sonia}
}
