00707naa#a2200193#i#450# EN\\bibl\19100 20240505102821.7 1995-0411 20171129b2017####ek#y0engy0150####ca RUS RU THE TOURISM AND INFRASTRUCTURE POTENTIAL OF ECOLOGICAL TOURISM IN COUNTRYSIDE OF THE REPUBLIC OF MORDOVIA Journal article CHERKIZOVO Russian State University of Tourism and Service 2017 10 с. Journal article local Туристско-экскурсионное обслуживание. 71.37 grnti Kitsis Vyacheslav Mihaylovich VAVILOVA Alina V. spst-journal.editorum.ru