TY - JOUR AU - Bolesław KopocińskiI TI - Classes of reliability functions JO - Mathematica Applicanda PY - 1983 SP - 37 EP - 54 VL - 11 IS - 23 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v11i23.1600/ DO - 10.14708/ma.v11i23.1600 LA - pl ID - 10_14708_ma_v11i23_1600 ER -