TY - BOOK AU - International workshop held at Caracas, june 14-18,1982 AU - Pereyra, V., ed. AU - Reinoza, A., ed. TI - Numerical methods T2 - Lecture notes in matheamtics SN - 3540123342 U1 - 519.406 PY - 1983/// CY - Berlin PB - Springer-Verlag ER -