Haemmerlin, Prof. Dr. G. / Hoffmann, Prof. Dr. K.-H., Improperly Posed Problems and Their Numerical Treatment : Conference Held at the Mathematisches Forschungsinstitut, Oberwolfach, September 26-October 2, 1982. Softcover reprint of the original 1st ed. 1983. (International Series of Numerical Mathematics) 264 pp. (Springer Basel, SZ) ＜M25-18536＞