Actes du colloque C.N.R.S.-E.S.R.C. Paris, 23-27 mai 1986 = proceedings of the C.N.R.S.-E.S.R.C. Symposium Paris, May 23-27th, 1986.
Actes du colloque C.N.R.S.-E.S.R.C. Paris, 23-27 mai 1986 = proceedings of the C.N.R.S.-E.S.R.C. Symposium Paris, May 23-27th, 1986.