1. 1) Bearing Steel, The Rating of Nonmetallic Inclusion, ASTM STP 575, ed. by J.J.C.Hoo, P.T.Kilhefner and J.J.Donze, (1975)
2. 2) Effect of Steel Manufacturing Processes on the Quality of Bearing Steels, ASTM STP 987, ed. by J.J.C.Hoo, (1988)
3. 4) K.Toyama and M.Yamamoto : Proc. Fatigue 90, ed. by H. Kitagawa and T.Tanaka, 1 (1990), p. 343
4. 11) M.F.Garwood, H.H.Gensamer and J.T.Zurburg : Interpretation of Tests and Correlation with Service, (1951), p.1 [American Society for Metals, Cleveland, OH, USA]