@article {BHI98,
	title = {On Decision-Mappings Related to Process Network Synthesis Problem},
	journal = {Acta Cybernetica},
	volume = {13},
	year = {1998},
	pages = {319-328},
	author = {Z. Bl{\'a}zsik and Cs. Holl{\'o} and B. Imreh}
}
