1. H. Ernst, P.C. Paris, M. Rossow, J.W. Hutchinson, in: C.W. Smith (Ed.), ASTM STP 677, Blacksburg, 1979, pp. 581–599.
2. H.A. Ernst, P.C. Paris, J.D. Landes, in: R. Roberts (Ed.), Frac. Mech.: 13th Conference, ASTM STP 743, Philadelphia, 1981, pp. 476–502.
3. J.A. Joyce, in: J.C. Lewis, G. Sines (Eds.), Fract. Mech.: Proceedings of the Fourteenth Symposium, Vol. I: Theory and Analysis, ASTM STP 791, Los Angeles, 1983, pp. I543–I560.