- document
- Lindhout, J.P.F. (author), Cousteix, J. (author), Humphreys, D. (author), Smith, P.D. (author), Kordulla, W. (author) report 1984
- document
- van den Berg, B. (author), Cousteix, J. (author), Fanneløp, T.K. (author), Hirschel, E.H. (author), Smith, P.D. (author) report 1978