2 citations to https://www.mathnet.ru/eng/sigma1468

1. B. Gao, Q. Yin, “Construction of invariant solutions and conservation laws to the (2+1)-dimensional integrable coupling of the KdV equation”, Bound. Value Probl., 2020:1 (2020), 169        
2. T. Ayano, V. M. Buchstaber, “Ultraelliptic integrals and two-dimensional sigma-functions”, Funct. Anal. Appl., 53:3 (2019), 157–173