Voir la notice de l'article provenant de la source Numdam
@article{CM_1993__85_1_1_0, author = {Ichikawa, Takashi}, title = {The universal periods of curves and the {Schottky} problem}, journal = {Compositio Mathematica}, pages = {1--8}, publisher = {Kluwer Academic Publishers}, volume = {85}, number = {1}, year = {1993}, mrnumber = {1199201}, zbl = {0783.14018}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1993__85_1_1_0/} }
Ichikawa, Takashi. The universal periods of curves and the Schottky problem. Compositio Mathematica, Tome 85 (1993) no. 1, pp. 1-8. http://geodesic.mathdoc.fr/item/CM_1993__85_1_1_0/