TY JOUR TI RECREATIONAL PRESSURE, ITS IMPACT ON THE NATURAL ENVIRONMENT (THE CASE OF THE IVANOVSKIE LAKES) KW recreation KW recreational appeal KW recreational pressure KW breaking of soil-vegetable cover KW lakes KW Ivanovskie lakes KW Khakassia JO Bulletin of Kemerovo State University. Series: Biological, Engineering and Earth Sciences AU Vorotilina, N.V. AU Oreshkova, T.A. AU Makhrova, M.L. AU Denisova, O.O. PY 2017 IS 1 PB Kemerovo State University