1. Mechanization and concentration of thick coal seams mining in SFR Yugoslavia;Ahcan,1977
2. Thick, steep and irregular coal seam mining;Atkinson;The Mining Engineer,1979
3. Engineering classification of jointed rock masses;Bieniawski;Transactions of the South African Institution of Civil Engineers,1973
4. Engineering Rock Mass Classifications: A Complete Manual for Engineers and Geologists in Mining, Civil and Petroleum Engineering;Bieniawski,1989
5. Application of GLI Tunable-Omerler Underground Mechanization;Destanoglu,2000