TY JOUR TI RESULTS OF A HYDROCHEMICAL AND HYDROBOTANICAL STUDY OF THE WATER BODIES IN AN AREA OF THE KAZYM RIVER BASIN IN THE NUMTO NATURAL PARK KW JO Bulletin of Nizhnevartovsk State University AU Sviridenko, B.F. AU Murashko, Y.A. AU Sviridenko, T.V. PY 2017 IS PB Nizhnevartovsk State University