00470naa#a2200157#i#450# EN\\bibl\102234 20250901235644.1 2588-0209 20220225b2022####ek#y0engy0150####ca RU DEVELOPMENT OF ECOLOGICAL TOURISM IN SPECIALLY PROTECTED NATURAL AREAS (RUSSIAN AND FOREIGN EXPERIENCE) Journal article Moscow Electronic science 2022 0 с. Journal article local mshj.ru