TY JOUR TI ASSESSMENT OF EFFICIENCY OF POLYMER COMPOSITE MATERIALS BIODEGRADATION KW JO Bulletin of Nizhnevartovsk State University AU Belik, E.S. AU Rudakova, L.V. AU Kulikova, Y.V. AU Burmistrova, M.V. AU Slyusar, N.N. PY 2017 IS PB Nizhnevartovsk State University