Author(s):
1. Lazar Stojanović, Rudarski fakultet Prijedor,
Republic of Srpska, Bosnia and Herzegovina
2. Dragan Komljenovic, Hydro-Quebec’s Research Institute (IREQ), Canada
3. Vladimir Malbašić, Rudarski fakultet Prijedor,
Republic of Srpska, Bosnia and Herzegovina
4. Mladenko Knežević,
Republic of Srpska, Bosnia and Herzegovina