TY  - JOUR
AU  - Havel, Ivan
AU  - Morávek, Jaroslav
TI  - $B$-valuations of graphs
JO  - Czechoslovak Mathematical Journal
PY  - 1972
SP  - 338
EP  - 351
VL  - 22
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1972.101102/
DO  - 10.21136/CMJ.1972.101102
LA  - en
ID  - 10_21136_CMJ_1972_101102
ER  -