1. R. Kvapil: ‘Gravity flow in sublevel and panel caving –a common sense approach’; 2004, Luleå, Luleå University of Technology Press.
2. W. Hustrulid and R. Kvapil: ‘Sublevel caving – past and future’, Proc. Conf. MassMin 2008, (ed. H. Schunnesson and E. Nordlund), 107–132; 2008, Luleå, Luleå University of Technology Press.
3. G. Power and G. D. Just: ‘A review of sublevel caving current practice’, Proc. Conf. MassMin 2008, (ed. H. Schunnesson and E. Nordlund), 155–166; 2008, Luleå, Luleå University of Technology Press.
4. Rock mass characterization and assessment of block-forming geological discontinuities during caving of primary copper ore at the El Teniente mine, Chile