Gudmandsen, P., édit., 1997. Future Trends in Remote Sensing. Proceedings of the 17th EARSeL Symposium on Future Trends in Remote Sensing. Lyngby, Denmark, 17-19 June 1997, A. A. Balkema, Rotterdam-Brookfield, xii + 496 p., ill., 17,5 x 25,5 cm, 105 US. ISBN 90 5410933 5. - Cavayas, François (Géographie physique et Quaternaire, 1999)