1. School of Mining, Energy and Petroleum Engineering, UNSW Sydney, Australia
2. Geology Institute- Mining Department, Tallinn University of Technology, Tallinn, Estonia
3. Department for Underground Mining Methods, Institute of Mining, Technical University Bergakademie Freiberg, Germany
4. Department of Mineral Resources Engineering, Montanuniversität Leoben, Chair of Mining Engineering and Mineral Economics, Austria
5. Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Australia