TY  - JOUR
AU  - Krzysztof Kołodziejczyk
TI  - On starshapedness of the union of closed sets in $R^n$
JO  - Colloquium Mathematicum
PY  - 1987
SP  - 193
EP  - 197
VL  - 53
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-53-2-193-197/
DO  - 10.4064/cm-53-2-193-197
LA  - en
ID  - 10_4064_cm_53_2_193_197
ER  -