Аутори:
1. Rada Petrovic,
Republic of Srpska, Bosnia and Herzegovina
2. Sanja Dobrnjac,
Republic of Srpska, Bosnia and Herzegovina
3. Jelena Penavin-Škundrić, Природно-математички факултет Бања Лука,
Republic of Srpska, Bosnia and Herzegovina
4. Зорица Леви, Faculty of Technology Banja Luka,
Republic of Srpska, Bosnia and Herzegovina
5. Дарко Бодрожа,
Republic of Srpska, Bosnia and Herzegovina
6. Mirko Petković,
Republic of Srpska, Bosnia and Herzegovina
7. Trivo Stanković,
Republic of Srpska, Bosnia and Herzegovina