Information ecology and libraries = proceedings of the International Conference organized on the occassion of the 90th anniversary of the establisment of the Faculty of Philosophy at Comenius University in Bratislava = Informačná ekológia a knižnice : Bratislava, University Library in Bratislava, Slovakia, 10 - 12 October, 2011 - Steinerová, Jela, 1961- (Vydavateľstvo Univerzity Komenského, 2011)