TY  - JOUR
AU  - Iwo Labuda
TI  - Boundaries of upper semicontinuous set valued maps
JO  - Commentationes Mathematicae
PY  - 2005
SP  -  225
EP  - 235
VL  - 45
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/cm.v45i2.5202/
DO  - 10.14708/cm.v45i2.5202
LA  - pl
ID  - 10_14708_cm_v45i2_5202
ER  -