TY - JOUR AU - Katarzyna Troczka-Pawelec TI - K-subquadratic set-valued functions JO - Commentationes Mathematicae PY - 2014 SP - 147 EP - 157 VL - 54 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/cm.v54i2.697/ DO - 10.14708/cm.v54i2.697 LA - pl ID - 10_14708_cm_v54i2_697 ER -