@article {67004,
	title = {A note on the two-stage hybrid flow shop problem with dedicated machines},
	journal = {Optimization LettersOptimization Letters},
	volume = {6},
	year = {2012},
	month = {2012},
	pages = {1731-1736},
	isbn = {1862-4480},
	author = {Hadda, Hatem and Dridi, Najoua and Hajri-Gabouj, Sonia}
}
