1. J. R. Klepaczko, ?Discussion of a new experimental method in measuring fracture toughness initiator at high loading rates by stress waves?, J. Eng. Mater. Technol.,104, No.1, 29?35 (1982).
2. J. M. Krafft, ?Correlation of plane strain crack toughness with hardening characteristics of a low, a medium and a high strength steel?, Appl. Mater. Res., No. 4, 88?101 (1964).
3. K. Turner, ?Measurement of fracture toughness in impact tests with oscillographing?, in: Impact Tests of Metals [Russian translation], Mir, Moscow (1973), pp. 100?122.
4. S. Dalela, ?Material response at different strain-rates?, Precis. Eng.,2, No. 1, 13?16 (1980).
5. G. V. Stepanov and V. A. Makovei, ?Determination of characteristics of fracture toughness under impact loading?, Probl. Prochn., No. 9, 80?84 (1982).