TY  - JOUR
AU  - Fernando Torres
TI  - Weierstrass points and double converings of curves. With application: Symmetric numerical semigroup which cannot be realized as Weierstrass semigroups.
JO  - Manuscripta mathematica
PY  - 1994
SP  - 39
EP  - 58
VL  - 83
IS  - 3-4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MM2_1994__83_3-4_155946/
ID  - MM2_1994__83_3-4_155946
ER  -