%0 Journal Article %A L. A. Takhtadzhyan %T A~simple example of modular forms as tau-functions for integrable equations %J Teoretičeskaâ i matematičeskaâ fizika %D 1992 %P 330-341 %V 93 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1992_93_2_a9/ %G ru %F TMF_1992_93_2_a9