TY CONF TI Specific Features of Morpholithodynamics of the Lagoon Coast of the Arctic and Subarctic KW coast erosion KW migration of lagoon Straits KW bars KW freezing beaches KW Shishmarev KW Sakhalin JO XXVII International Shore Conference (Arctic Coast: The Path to Sustainability) AU Afanas'ev, V.V. PY 2024 PB Academus Publishing