1. Statik des Tunnel und Stollenbaues;Kastner,1962
2. Elasticity, Fracture and Flow;Jaeger,1962
3. Der Felsbau;Müller,1963
4. Failure in geological materials containing planes of weakness;Adler;Trans. Am. Inst. mech. Engrs, Soc. mech. Engrs,1963
5. Rock Mechanics Principles;Coates,1965