PREDICTING THE TROPHIC STATUS OF SOME LAKES OF KAZAKHSTAN

by Grigory Frumin, Yulia Krashanovskaya
Published 2015-10-01

CHANGES IN THE WATER QUALITY OF THE TRANSBOUDARY LAKE PEIPUS

by Yulia Fetisova, Grigory Frumin
Published 2017-10-01

Present-day state and permissible

by Pyotr Lozovik, Grigory Frumin
Published 2018-03-01

Water quality changes in Lake Pskovskoe (2000–2018)

by Grigory Frumin, Natalia Malysheva
Published 2020-03-01