1. E. K. Sklyanin, "Some algebraic structures connected with the Yang?Baxter equation," Funct. Anal. Appl.,16, No. 4, 27?34 (1982).
2. H. Bateman and A. Erdelyi, Higher Transcendental Functions, Vol. 3. Elliptic and Automorphic Functions. Lam� and Mathieu Functions. [Russian translation], Nauka, Moscow (1967).
3. H. Weber, Lehrbuch der Algebra, B. III. Elliptische Funktionen und Algebraische Zahlen, F. Vieweg und Sohn, Braunschweig (1908).
4. I. V. Cherednik, "On some S-matrices connected with Abelian varieties," Dokl. Akad. Nauk SSSR,249, No. 5, 1095?1098 (1979).
5. P. Halmos, A Hilbert Space Problem Book, Van Nostrand, Princeton, New Jersey (1967).