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Пеньков, В. Е. Астрономия [Электронный ресурс]: учебное пособие для спо / В. Е. Пеньков. — 2-е изд., стер. — Санкт-Петербург: Лань, 2023 — 60 с. — Книга из коллекции Лань - Физика. — <URL:https://e.lanbook.com/book/297671>. — <URL:https://e.lanbook.com/img/cover/book/297671.jpg>.
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