@book{28360,
	author = {BALDOCK, Gordon Ramsey and BRIDGEMAN, Tony},
	title = {The mathematical theory of wave motion /},
	year = {1981.},
	series = {Ellis Harwood Series in Mathematics and Its Applications},
	address = {Chichester,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=28360}
}