1. Mechanical Behaviour of Materials;McClintock,1966
2. Deformation and Fracture Mechanics of Engineering Materials;Hertzberg,1989
3. Strong Solids;Kelly,1986
4. Physical Foundations of Materials Science;Göttstein,2004
5. Untersuchung über Härteprüfung und Härte;Meyer;Z. Ver. Deut. Ingenieure,1908