TY  - JOUR
AU  - Hedrlín, Z.
AU  - Pultr, A.
TI  - On Rigid Undirected Graphs
JO  - Canadian journal of mathematics
PY  - 1966
SP  - 1237
EP  - 1242
VL  - 18
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-121-7/
DO  - 10.4153/CJM-1966-121-7
ID  - 10_4153_CJM_1966_121_7
ER  -