TY  - JOUR
AU  - Marcin Krzywkowski
TI  - The hat problem on a union of disjoint graphs
JO  - Commentationes Mathematicae
PY  - 2011
SP  -  167
EP  - 176
VL  - 51
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/cm.v51i2.5318/
DO  - 10.14708/cm.v51i2.5318
LA  - pl
ID  - 10_14708_cm_v51i2_5318
ER  -