1. R. Marissen and L. B. Vogelesang, in Proceedings of International SAMPE Conference, Cannes, France, 1981.
2. L. B. Vogelesang, R. Marissen and J. Schijve, in Proceedings of 11th ICAF Symposium, Noordwijkerhout, The Netherlands, 1981.
3. J. W. Gunnink, L. B. Vogelesang and J. Schijve, in Proceedings of 13th Congress of the International Council of Aerospace Science, Seattle, Washington, 1982, p. 990.
4. Report LR-400;L. B. Vogelesang,1983
5. J. W. Gunnink, M. L. C. E. Verbruggen and L. B. Vogelesang, Vertica
10 (1986) 241.