JAN M. The Portrayal of Peter in Modern Historiography. W: LESZKA, Mirosław J. (red.). The Bulgarian State in 927-969. The Epoch of Tsar Peter I: No. XXXIV. Byzantina LodziensiaPoland: Wydawnictwo Uniwersytetu Łódzkiego,2018. p. 481–527. DOI: 10.18778/8142-115-7.22. Disponível em: https://press.uni.lodz.pl/index.php/wul/catalog/book/1057/chapter/2742. Acesso em: 28 sty. 2026.