J. B. de Jonge and H. H. Van de Lingen.Symposium of the International Committee on Aeronautical Fatigue(11th : 1981 : Noordwijkerhout, The Netherlands)：Aircraft fatigue in the eighties; proceedings of the 11th ICAF Symposium.National Aerospace Laboratory,n. d..
Symposium of the International Committee on Aeronautical Fatigue(11th : 1981 : Noordwijkerhout, The Netherlands)：Aircraft fatigue in the eighties; proceedings of the 11th ICAF Symposium
J. B. de Jonge and H. H. Van de Lingen.National Aerospace Laboratory,n. d..
