TY - JOUR AU - KosiƄski, W. TI - On fuzzy number calculus JO - International Journal of Applied Mathematics and Computer Science PY - 2006 SP - 51 EP - 57 VL - 16 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IJAMCS_2006_16_1_a3/ LA - en ID - IJAMCS_2006_16_1_a3 ER -