%0 Journal Article %A Gherardelli, F. %T A geometric description of the sum of linear series of order two on a curve of genus 2. %J Rendiconti del seminario matematico %D 2001 %P 225-228 %V 59 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RSM_2001__59_3_127961/ %G en %F RSM_2001__59_3_127961