TY - JOUR AU - Krzysztof Szajowski TI - Cover volume JO - Mathematica Applicanda PY - 2016 SP - i VL - 44 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v44i1.1541/ DO - 10.14708/ma.v44i1.1541 LA - pl ID - 10_14708_ma_v44i1_1541 ER -