1. Health care for nautical tourists;Nikolić;Bull Inst Mar Trop Med Gdynia,1992
2. Program of training for the skippers in nautical tourism;Nikolić;Travel Medicine International,1992
3. Nikolić N Survey of the injuries among yachting tourists in Adriatic, in a two year period
4. Vukoja J Pravilnik o brodicama Pomorski zakonik 1994 Informator 48 49