TY  - JOUR
AU  - M. K. Gol'dberg
TI  - Some applications of the operation of contraction to strongly connected graphs
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1965
VL  - 20
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1965_20_5_a10/
LA  - ru
ID  - RM_1965_20_5_a10
ER  -