TY - JOUR AU - Anna Chwastyk AU - Witold KosiƄski TI - Fuzzy calculus with aplications JO - Mathematica Applicanda PY - 2013 SP - 47 EP - 96 VL - 41 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v41i1.380/ DO - 10.14708/ma.v41i1.380 LA - pl ID - 10_14708_ma_v41i1_380 ER -