Л. О. Чехов, М. З. Шапиро, Х. Шибо, “Корни характеристического уравнения для симплектического группоида”, УМН, 77:3(465) (2022), 177–178; L. O. Chekhov, M. Z. Shapiro, H. Shibo, “Roots of the characteristic equation for the symplectic groupoid”, Russian Math. Surveys, 77:3 (2022), 552–554
П. Г. Гриневич, С. П. Новиков, “Дискретные $SL_n$-связности и самосопряженные разностные операторы на двумерных многообразиях”, УМН, 68:5(413) (2013), 81–110; P. G. Grinevich, S. P. Novikov, “Discrete $SL_n$-connections and self-adjoint difference operators on two-dimensional manifolds”, Russian Math. Surveys, 68:5 (2013), 861–887
Tempesta P., “Integrable Maps From Galois Differential Algebras, Borel Transforms and Number Sequences”, J. Differ. Equ., 255:10 (2013), 2981–2995
Tempesta P., “Discretization of nonlinear evolution equations over associative function algebras”, Nonlinear Anal., 72:7-8 (2010), 3237–3246
S.P. Novikov, Lecture Notes in Physics, 767, Integrability, 2009, 119
Adler V.E., Veselov A.P., “Cauchy problem for integrable discrete equations on quad-graphs”, Acta Appl. Math., 84:2 (2004), 237–262
V. E. Adler, A. P. Veselov, “Cauchy Problem for Integrable Discrete Equations on Quad-Graphs”, Acta Appl Math, 84:2 (2004), 237
Bobenko A.I., Hoffmann T., “Hexagonal circle patterns and integrable systems: Patterns with constant angles”, Duke Math. J., 116:3 (2003), 525–566
Л. О. Чехов, “Интегрируемые деформации систем на графах с петлями”, УМН, 57:3(345) (2002), 169–170; L. O. Chekhov, “Integrable deformations of systems on graphs with loops”, Russian Math. Surveys, 57:3 (2002), 587–588
Bobenko A.I., Suris Yu.B., “Integrable systems on quad-graphs”, Int. Math. Res. Not., 2002, no. 11, 573–611
Bobenko A.I., Hoffmann T., Suris Yu.B., “Hexagonal circle patterns and integrable systems: patterns with the multi-ratio property and Lax equations on the regular triangular lattice”, Int. Math. Res. Not., 2002, no. 3, 111–164
Л. О. Чехов, Н. В. Пузырникова, “Интегрируемые системы на графах”, УМН, 55:5(335) (2000), 181–182; L. O. Chekhov, N. V. Puzyrnikova, “Integrable systems on graphs”, Russian Math. Surveys, 55:5 (2000), 992–994
; L. O. Chekhov, M. Z. Shapiro, H. Shibo, “Roots of the characteristic equation for the symplectic groupoid”, Russian Math. Surveys, 77:3 (2022), 
; P. G. Grinevich, S. P. Novikov, “Discrete 