@article {4,
	title = {Advisor: A Knowledge Based Planning System},
	journal = {International Journal of Expert Systems. Reseach and Applications},
	volume = {9},
	year = {1996},
	month = {00/1996},
	pages = {319-355},
	type = {Expert Systems},
	author = {C.C.Marinagi and T. Panayiotopoulos and G. Vouros}
}
