TY - JOUR AU - Redakor Redaktor TI - Summaries JO - Mathematica Applicanda PY - 1985 SP - 229 EP - 232 VL - 13 IS - 26 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v13i26.1658/ DO - 10.14708/ma.v13i26.1658 LA - pl ID - 10_14708_ma_v13i26_1658 ER -