1. The stability of trapezoidal openings in rock masses;Trollope;Rock Mech. Engng Geol.,1966
2. Experimental structural geology;Currie;Earth Sci. Rev.,1966
3. Similitude and Theory of Models;Beaujoint,1960
4. Dimensional Analysis and Theory of Models;Langhaar,1951
5. A Strength Criterion for Rock;Franklin,1968