@book{109406,
	author = {Aldridge, M. V. and ebrary, Inc.},
	title = {The elements of mathematical semantics},
	publisher = {Mouton de Gruyter,},
	year = {1992.},
	address = {Berlin ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10598223}
}