1. Assistant Professor, Faculty of Mechanical Engineering and Naval Architecture, Univ. of Zagreb, Ivana Lučića 5, Zagreb 10000, Croatia (corresponding author).
2. Mathematics Teacher, Master of Applied Mathematics, General Grammar School A.G. Matoš, Andrije Hebranga 26, Samobor 10430, Croatia.
3. Naval Architect, Hull Design Dept., ULJANIK, Brodogradilište d.d., Flaciusova 1, Pula 52100, Croatia; presently, Naval Architect, IHC Engineering Croatia d.o.o, Milutina Barača 7, 51000 Rijeka, Croatia.