Oleh M. Yusypenko. Ecological and economic principles of the formation of recreational land use within the water protection zones of the territories of cities : Доктор філософії : spec.. 051 - Економіка : presented. 2023-11-23; popup.evolution: o; National University of Life and Environmental Sciences of Ukraine. – Київ, 0823U101270.

Updated: 2026-11-02