@article{GDZPPN002232081,
title = {Weierstrass semigroups and the canonical ideal of non-trigonal curves.},
journal = {Manuscripta mathematica},
volume = {70},
year = {1991},
pages = {431-450},
zbl = {0742.14029},
url = {http://dml.mathdoc.fr/item/GDZPPN002232081}
}
Oliveira, Gilvan. Weierstrass semigroups and the canonical ideal of non-trigonal curves.. Manuscripta mathematica, Tome 70 (1991) pp. 431-450. http://gdmltest.u-ga.fr/item/GDZPPN002232081/