Singularities and constructive methods for their treatment proceedings of the conference held in Oberwolfach, West Germany, November 20-26, 1983 / edited by P. Grisvard, W. Wendland, and J.R. Whiteman. - Grisvard, P. (Pierre); Wendland, W. L. (Wolfgang L.), 1936-; Whiteman, J. R. (John Robert) (Lecture notes in mathematics (Springer-Verlag) ;, 1985)