TY  - JOUR
AU  - Jonathan M. Wahl
TI  - Derivations of Negative Weight and Non-Smoothability of Certain Singularities.
JO  - Mathematische Annalen
PY  - 1981
SP  - 383
EP  - 398
VL  - 258
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1981__258_163605/
ID  - MAN_1981__258_163605
ER  -