For citations:
Shakirzyanov A.M., Petrova D.I., Sofinskaya O.A. Assessment of the ecological state of Kazan surface waters. Georesursy = Georesources. 2021;23(4):124-128. (In Russ.) https://doi.org/10.18599/grs.2021.4.14
Shakirzyanov A.M., Petrova D.I., Sofinskaya O.A. Assessment of the ecological state of Kazan surface waters. Georesursy = Georesources. 2021;23(4):124-128. (In Russ.) https://doi.org/10.18599/grs.2021.4.14