Singularities and Constructive Methods for Their Treatment: Proceedings of the Conference Held in Oberwolfach, West Germany, November 20-26, 1983 (Paperback, 1985)
Iabem Symposium on Boundary Integral Methods for Nonlinear Problems: Proceedings of the Iabem Symposium Held in Pontignano, Italy, May 28-June 3 1995 (Paperback, Softcover Repri)