TY  - JOUR
AU  - M. Artin
TI  - Some numerical criteria for contractability of curves on algebraic surfaces
JO  - Matematika
PY  - 1965
SP  - 3
EP  - 14
VL  - 9
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAT_1965_9_3_a0/
LA  - ru
ID  - MAT_1965_9_3_a0
ER  -