TY  - JOUR
AU  - V. A. Doiber
AU  - A. V. Kostochka
AU  - H. Sachs
TI  - A~very short proof of Dirac's theorem on the number of edges in chromatically critical graphs
JO  - Diskretnyj analiz i issledovanie operacij
PY  - 1996
SP  - 28
EP  - 34
VL  - 3
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DA_1996_3_4_a1/
LA  - ru
ID  - DA_1996_3_4_a1
ER  -