title: [Problems in the systematization of natural ecological factors in recreation].
authors.forename: L V
authors.initials: LV
authors.lastname: Veremchuk
mesh_terms: D003247:Conservation of Natural Resources; D017753:Ecosystem; D006801:Humans; D011998:Recreation
vernacular_title: Voprosy sistematizatsii prirodno-ékologicheskikh faktorov v rekreatsii.