T. Ayano, V. M. Buchstaber, “Analytical and number-theoretical properties of the two-dimensional sigma function”, Чебышевский сб., 21:1 (2020), 9–50
Bernatska J., Enolski V., Nakayashiki A., “Sato Grassmannian and Degenerate SIGMA Function”, Commun. Math. Phys., 374:2 (2020), 627–660
Buchstaber V.M. Enolski V.Z. Leykin D.V., “SIGMA-Functions: Old and New Results”, Integrable Systems and Algebraic Geometry: a Celebration of Emma Previato'S 65Th Birthday, Vol 2, London Mathematical Society Lecture Note Series, 459, ed. Donagi R. Shaska T., Cambridge Univ Press, 2020, 175–214
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Komeda J., Matsutani Sh., Previato E., “The SIGMA Function For Trigonal Cyclic Curves”, Lett. Math. Phys., 109:2 (2019), 423–447
Т. Аяно, В. М. Бухштабер, “Ультраэллиптические интегралы и двумерные сигма-функции”, Функц. анализ и его прил., 53:3 (2019), 3–22 ; T. Ayano, V. M. Buchstaber, “Ultraelliptic integrals and two-dimensional sigma-functions”, Funct. Anal. Appl., 53:3 (2019), 157–173
Takanori Ayano, Victor M. Buchstaber, “Construction of Two Parametric Deformation of KdV-Hierarchy and Solution in Terms of Meromorphic Functions on the Sigma Divisor of a Hyperelliptic Curve of Genus 3”, SIGMA, 15 (2019), 032, 15 pp.
Nakayashiki A., “Degeneration of Trigonal Curves and Solutions of the KP-Hierarchy”, Nonlinearity, 31:8 (2018), 3567–3590
Julia Bernatska, Dmitry Leykin, “On Regularization of Second Kind Integrals”, SIGMA, 14 (2018), 074, 28 pp.
Joe Suzuki, “Klein's Fundamental $2$-Form of Second Kind for the $C_{ab}$ Curves”, SIGMA, 13 (2017), 017, 13 pp.