V. M. Buchstaber, Steklov Institute of Mathematics, Moscow, Russia. B. A. Dubrovin, SISSA, Trieste, Italy. I. M. Krichever, Columbia University, New York, NY, USA.
V. M. Buchstaber, Steklov Institute of Mathematics, Moscow, Russia. B. A. Dubrovin, SISSA, Trieste, Italy. I. M. Krichever, Columbia University, New York, NY, USA.