@article{05019599,
title = {A geometric description of the sum of linear series of order two on a curve of genus 2.},
journal = {Rendiconti del Seminario Matematico},
volume = {59},
year = {2001},
pages = {225-228},
zbl = {1121.14300},
language = {en},
url = {http://dml.mathdoc.fr/item/05019599}
}
Gherardelli, F. A geometric description of the sum of linear series of order two on a curve of genus 2.. Rendiconti del Seminario Matematico, Tome 59 (2001) pp. 225-228. http://gdmltest.u-ga.fr/item/05019599/