Dovzhenko, P., K. Borysenko, V. Popov, and S. M. Hutchinson. “The Tourism of Collecting: A Case Study from the Kharkiv Region, Ukraine”. Visnyk of V. N. Karazin Kharkiv National University. Series Geology. Geography. Ecology, no. 63, Dec. 2025, pp. 184-96, doi:10.26565/2410-7360-2025-63-14.