TY  - JOUR
AU  - Fernando Serrano
TI  - Multiple fibres of a morphism.
JO  - Commentarii mathematici Helvetici
PY  - 1990
SP  - 287
EP  - 298
VL  - 65
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140196/
ID  - CMH_1990__65_3_140196
ER  -