@book{sowa84,
	title = {Conceptual structures: information processing in mind and machine},
	address = {Boston, MA, USA},
	author = {J. F. Sowa},
	publisher = {Addison-Wesley Longman Publishing Co., Inc.},
	year = {1984},
	biburl = {http://www.bibsonomy.org/bibtex/21fdc48e06d28fd9052a55d34802965ce/vittorio.loreto},
	isbn = {0-201-14472-7},
	keywords = {1984 conceptual information networks semantic sowa }
}