For citations:
Suprunenko U.P. Mountain national parks and ecological tourism. South of Russia: ecology, development. 2008;3(4):178-181. (In Russ.) https://doi.org/10.18470/1992-1098-2008-4-178-181
Suprunenko U.P. Mountain national parks and ecological tourism. South of Russia: ecology, development. 2008;3(4):178-181. (In Russ.) https://doi.org/10.18470/1992-1098-2008-4-178-181