TY  - JOUR
AU  - G. Chartrand
AU  - M. Behzad
TI  - Line-Coloring of Signed Graphs.
JO  - Elemente der Mathematik
PY  - 1969
SP  - 49
EP  - 52
VL  - 24
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ELMA_1969__24_140926/
ID  - ELMA_1969__24_140926
ER  -