@book{40550,
	author = {DAVIS, Julian L.},
	title = {Mathematics of wave propagation /},
	publisher = {Princeton University Press,},
	year = {2000.},
	address = {Princeton, NJ :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=40550}
}