TY - JOUR AU - Teresa RegiƄska TI - Approximate solving of ill posed problems JO - Mathematica Applicanda PY - 1989 SP - 119 EP - 135 VL - 17 IS - 31 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v17i31.1768/ DO - 10.14708/ma.v17i31.1768 LA - pl ID - 10_14708_ma_v17i31_1768 ER -