Weiss J, 1986, J. Math. Phys., 27, 2647, 10.1063/1.527284
Weiss J, 1987, J. Math. Phys., 28, 2025, 10.1063/1.527411
Atkinson J, 2007, J. Phys A, 40, F1, 10.1088/1751-8113/40/1/F01
Adler V E, 1998, Intl. Math. Res. Notices, 1, 1, 10.1155/S1073792898000014
Krichever I M, 1979, Sov. Math. Dokl., 20, 650
Krichever I M, 1980, Russ. Math. Surv., 35, 53, 10.1070/RM1980v035n06ABEH001974
Nijhoff F W, 2001, Glasgow Math. J., 43, 109, 10.1017/S0017089501000106
Bobenko A I, 2002, Intl. Math. Res. Notices, 11, 573, 10.1155/S1073792802110075
Nijhoff F W, 2002, Phys. Lett. A, 297, 49, 10.1016/S0375-9601(02)00287-6
Papageorgiou V G, 1990, Phys. Lett. A, 147, 106, 10.1016/0375-9601(90)90876-P
Capel H W, 1991, Phys. Lett. A, 155, 377, 10.1016/0375-9601(91)91043-D
Veselov A P, 1991, Russ. Math. Surv., 46, 1, 10.1070/RM1991v046n05ABEH002856
Joshi N, 2006, Lett. Math. Phy., 78, 27, 10.1007/s11005-006-0103-5
Nijhoff F W, 1999, Symmetries and integrability of Difference Equations, 64, 10.1017/CBO9780511569432.007
Hietarinta J, 2005, J. Nonlinear Math. Phys., 12, 223, 10.2991/jnmp.2005.12.s2.16