TY JOUR TI ASSESSING THE PROBLEMS AND MANAGEMENT MECHANISMS, INVESTMENT POLICY AND MARKETING IN SUSTAINABLE TOURISM BASED ON EXPERT SURVEY KW sustainable development KW tourism KW expert survey KW development strategy KW sustainable tourism KW rural tourism, investment policy KW market mechanisms JO Services in Russia and abroad AU Rassokhina, T.. AU Seselkin, A.. PY 2016 IS 10 PB Russian State University of Tourism and Service