by MURATOVA, M.V, SEREBRYANNY, L.R, DENISSENKO, O.V, KISELEV, S.V
Published in Geographica Helvetica (1993)

by Muratova, M.V, Suetova, I.A, Burashnikova, G.A, Krolichenko, E.I
Published in Priroda (1980)