TY - JOUR AU - Rakovská, Eva AU - Hudec, Miroslav TI - A three-level aggregation model for evaluating software usability by fuzzy logic JO - International Journal of Applied Mathematics and Computer Science PY - 2019 SP - 489 EP - 501 VL - 29 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IJAMCS_2019_29_3_a5/ LA - en ID - IJAMCS_2019_29_3_a5 ER -