INTERNATIONAL CONFERENCE ON ORGANIZATION AND INFORMATION SYSTEMS; KALTNEKAR, Zdravko; GRIČAR, Jože. Proceedings of International Conference on Organization and Information Systems : effectiveness, efficiency, humanization, Bled, September, 13-15, 1989. [Kranj : Visoka šola za organizacijo dela, 1989]. 2 zv. (1040 str.). ISBN 86-81049-23-2.