1. School of Mineral Resources Engineering, Technical University of Crete Campus, 73100 Chania, Greece
2. School of Mining and Metallurgical Engineering, National Technical University of Athens, Iroon Polytechniou 9 str., Zografou Campus, 15773 Athens, Greece
3. Mining Engineering and Closure Planning Department, Public Power Corporation, Chalkokondili 29 str., 10432 Athens, Greece
4. Department of Mineral Resources Engineering, School of Engineering, University of Western Macedonia, 50100 Kozani, Greece