For citations:

Kholoptsev A.V., Podporin S.A. STUDYING POLYNYA OCCURRENCE TERMS AND DURATION ON THE SHIPPING ROUTES IN THE LAPTEV SEA. Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova. 2022;14(5):691-700. (In Russ.) https://doi.org/10.21821/2309-5180-2022-14-5-691-700