1. Drag bit cutting: a conception of rock deformation processes that correspond to obtained force-distance plots;Inyang,1990
2. Indentation by pore collapse in porous rocks;Suarez-Rivera,1990
3. Behavior of the crushed zone in rock indentation;Lindqvist;Rock Mech. and Rock Engi,1983
4. Rock failure under concentrated loading;Ladanyi,1968
5. Damage accumulation due to microcracking in brittle rock under dynamic loading;Taylor,1985