TY  - JOUR
AU  - Singh, Balwant
TI  - A numerical criterion for the permissibility of a blowing-up
JO  - Compositio Mathematica
PY  - 1976
SP  - 15
EP  - 28
VL  - 33
IS  - 1
PB  - Noordhoff International Publishing
UR  - http://www.numdam.org/item/CM_1976__33_1_15_0/
LA  - en
ID  - CM_1976__33_1_15_0
ER  -