For citations:

Kalinkina N.M., Tekanova E.V., Sabylina A.V., Ryzhakov A.V. Changes in the Hydrochemical Regime of Onego Lake Since the Early 1990s. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2019;(1):62-72. (In Russ.) https://doi.org/10.31857/S2587-55662019162-72