CIZELJ, Boris; et al. EU and cross-border regional economic cooperation : #the #northern Adriatic ports of Trieste, Koper and Rijeka : conference proceedings, Portorož, Slovenia, 18 - 19 September 1998. Portorož : Faculty of Transport and Maritime Studies; Louvain-la Neuve : Université catholique, Institut d'études européennes, 2000. 155 str.. ISBN 961-6044-41-9.