“Справка (К вопросу об источниковедении и некоторых других вопросах) [A Background Check (On the Question of Archival Sources and Some Other Questions]”. Slavica Revalensia 10 (July 17, 2023): 499–508. Accessed July 20, 2025. https://publications.tlulib.ee/index.php/slavica/article/view/378.