@book{11880,
	author = {BLUMENTHAL, R. M. and GETOOR, R. K.},
	title = {Markov processes and potential theory /},
	publisher = {Academic Press,},
	year = {1968.},
	address = {New York :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=11880}
}