1. Crack propagation and the fracture of concrete;Kaplan;J Am Concr Inst,1961
2. Griffith fracture criterion of concrete;Shah;J Engng Mech, ASCE,1971
3. Fracture of plain concrete;Walsh;Indian Concr J,1972
4. Crack initiation in plain concrete;Walsh;Mag Concr Res,1976
5. Measuring the fracture toughness of cement paste and mortars;Brown;Cem Concr Res,1972