Kilinska, K., V. Yavorska, M. Zayachuk, and P. Sukhy. “Methodical Approaches to Recreational and Tourist Cycles - Fundamentals of Recreational and Tourist Nature Management”. Journal of Education, Health and Sport, vol. 11, no. 6, June 2021, pp. 259-67, doi:10.12775/JEHS.2021.11.06.028.