%0 Journal Article %A Ichikawa, Takashi %T The universal periods of curves and the Schottky problem %J Compositio Mathematica %D 1993 %P 1-8 %V 85 %N 1 %I Kluwer Academic Publishers %U http://archive.numdam.org/item/CM_1993__85_1_1_0/ %G en %F CM_1993__85_1_1_0