TY  - JOUR
AU  - Wahl, Jonathan
TI  - A characteristic number for links of surface singularities
JO  - Journal of the American Mathematical Society
PY  - 1990
SP  - 625
EP  - 637
VL  - 03
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1990-1044058-X/
DO  - 10.1090/S0894-0347-1990-1044058-X
ID  - 10_1090_S0894_0347_1990_1044058_X
ER  -