AVDEEV, A. Из истории освоения Aрктики: подписной крест XVI в. на острове Матвееве (Печорское море): FROM THE HSTORY OF THE DEVELOPMENT OF ARCTIC: SIGNATURE CROSS OF THE 16th CENTURY ON MATVEEV ISLAND (PECHORA SEA). Numismatics, Sigillography and Epigraphy | Нумизматика, сфрагистика и епиграфика, [S. l.], v. 19, p. 225–237, 2023. Disponível em: https://publications.naim.bg/index.php/NSE/article/view/399. Acesso em: 24 oct. 2026.