%0 Journal Article %A Voisin, Claire %T A mathematical proof of a formula of Aspinwall and Morrison %J Compositio Mathematica %D 1996 %P 135-151 %V 104 %N 2 %I Kluwer Academic Publishers %U http://archive.numdam.org/item/CM_1996__104_2_135_0/ %G en %F CM_1996__104_2_135_0