@book{23434,
	author = {Coombs, M. J.},
	title = {Developments in expert systems :},
	publisher = {Academic Press,},
	year = {1984.},
	series = {Computers and People Series},
	address = {London :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=23434}
}