@book{30883,
	author = {VALID, Roger},
	title = {The nonlinear theory of shells through variational principles :},
	publisher = {John Wiley,},
	year = {1995.},
	address = {Chichester [et al.] :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=30883}
}