3) T.K. O'Brien : Composite Materials-Testing and Design (Ninth Volume), ASTM STP 1059 (1990), p. 7.
4) T.K. O'Brien, M. Rigamonti & C. Zanotti : Tension Fatigue Analysis and Life Prediction for Composite Laminates, NASA TM-100549, NASA Langlay Research Center, Hampton (1988).