TY  - JOUR
AU  - Kratochvíl, Jan
TI  - Perfect codes in graphs and their Cartesian powers [Abstract of thesis]
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1989
SP  - 193
EP  - 194
VL  - 30
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1989__30_1_a25/
LA  - en
ID  - CMUC_1989__30_1_a25
ER  -