Margarita I. Varfolomeeva, Elena V. Pupynina, S. V. Z. E. A. S., and Y. Y. Genkin. “Mythologem of Twins As a Way to Regenerate Ethnic Self-Identification”. Opción, Vol. 35, Dec. 2019, pp. 22-34, https://produccioncientificaluz.org/index.php/opcion/article/view/30619.