Конференция: “Пещеры и карст...“. Научно-музыкальный фильм.
Конференция: “Пещеры и карст...“. Научно-музыкально- экскурсионной взгляд. (Парк Голубино, Пинежский район, Архангельская область), сентябрь 2022
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