TY - JOUR AU - Małgorzata Średnicka AU - Krzysztof J. Szajowski TI - Operation comfort vs. the importance of system components JO - Mathematica Applicanda PY - 2020 SP - 191 EP - 226 VL - 48 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v48i2.7058/ DO - 10.14708/ma.v48i2.7058 LA - pl ID - 10_14708_ma_v48i2_7058 ER -