Böhm, Marcin. „The Role of the Byzantine Navy in the Actions of Emperor Louis II of Italy Against Bari in 866–871. Louis II’s Letter of 871 to Emperor Basil I (867–886) – As a Source for Marine Military Studies?”. Studia Ceranea, t. 13, grudzień 2023, s. 13-27, doi:10.18778/2084-140X.13.23.