GUBAIDULLIN , A. M. . Some Questions of Medieval Fortification Studies. Arkheologiia Evraziiskikh Stepei (Archaeology of the Eurasian Steppes), [S. l.], n. 5, p. 67–73, 2022. DOI: 10.24852/2587-6112.2022.5.67.73. Disponível em: https://evrazstep.ru/index.php/aes/article/view/826. Acesso em: 7 nov. 2026.