С. Е. Тесалов and Н. В. Фролова, “DIGITAL CLUSTERING OF GUEST FLOWS AS AN ELEMENT OF SERVICE PERSONALIZATION INCREASE”, Сервис в России и за рубежом, vol. 20, no. 3, pp. 152–164, Aug. 2026, doi: 10.22412/1995-042X-2026-20-3-152-164.