1. The creep of weak rocks in the Burgin Mine;Cogan,1975
2. Stress-strain-time behavior of a number of coal measure rocks;Hobbs;Int. J. Rock Mech. Min. Sci.,1970
3. A study of the time-strain behavior of coal measure rocks;Price;Int. J. Rock Mech. Min. Sci.,1964
4. Viscosity of rocks;Robertson,1963
5. Creep and microseismic activity in geologic materials;Hardy,1970