Viacheslav V. Lihostaiev. Economic Foundations for the Implementation of Greening Processes in the Activities of Hotel Enterprises : Доктор філософії : spec.. 051 - Економіка : presented. 2026-09-04; popup.evolution: .; National University of Water and Environmental Engineering. – Рівне, 0826U004763.

Updated: 2026-11-08