TY  - JOUR
AU  - Nikodem, Kazimierz
TI  - A characterization of midconvex set-valued functions
JO  - Acta Universitatis Carolinae. Mathematica et Physica
PY  - 1989
SP  - 125
EP  - 129
VL  - 30
IS  - 2
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/AUCMP_1989__30_2_a18/
LA  - en
ID  - AUCMP_1989__30_2_a18
ER  -