“Investigation of Lettersa as Knowledge Aggregates: Opportunities and Limitations” (2018) Visnyk of V. N. Karazin Kharkiv National University. Series Sociological studies of contemporary society: methodology, theory, methods, 39, pp. 90–94. Available at: https://periodicals.karazin.ua/ssms/article/view/9895 (Accessed: 24 October 2026).