1. NLR test results as a data base to be used in a check of crack propagation prediction models. A Garteur activity;van der Linden;NLR TR 79121,1979
2. The significance of crack closure;Elber;ASTM STP,1971
3. The stress ratio effect on fatigue crack growth in 2024-T3 Alclad and the relation to crack closure;Schijve,1979
4. A finite-element analysis of fatigue crack closure. Mechanics of crack growth;Newman;ASTM STP,1976
5. A simple crack closure model for prediction of fatigue crack growth rates under variable amplitude loading;de Koning;NLR MP 80006,1980