TY  - JOUR
AU  - Pultr, Aleš
TI  - An analogon of the fixed-point theorem and its application for graphs
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1963
SP  - 121
EP  - 131
VL  - 4
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/CMUC_1963_4_3_a7/
LA  - en
ID  - CMUC_1963_4_3_a7
ER  -