GUBAIDULLIN, A. M.; KHAMZIN, R. N. THE FORTRESS STRUCTURES OF SVIYAZHSK. Arkheologiia Evraziiskikh Stepei (Archaeology of the Eurasian Steppes), [S. l.], n. 6, p. 410–417, 2020. DOI: 10.24852/2587-6112.2020.6.410.417. Disponível em: https://evrazstep.ru/index.php/aes/article/view/64. Acesso em: 7 nov. 2026.