@article{CHEB_2020_21_1_a2,
     author = {T. Ayano and V. M. Buchstaber},
     title = {Analytical and number-theoretical properties of the two-dimensional sigma function},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {9--50},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2020_21_1_a2/}
}