Bakulin, P. I., Dubrovsky, K. K., et al. Astronomical Calendar for 1954: Variable Section. Yearbook. Issue 57, 1953. In Russian

Бакулин, П. И., Дубровский, К. К. и др. (ред. колл.).
Астрономический календарь на 1954 год: Переменная часть. Ежегодник. Выпуск 57.
Всесоюзное Астрономо-Геодезическое Общество.
Москва: Государственное издательство технико-теоретической литературы, 1953.
204 с. Мягкая обложка. Обычный формат.
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Bakulin, P. I., Dubrovsky, K. K., et al. (ed. board).
Astronomical Calendar for 1954: Variable Section. Yearbook. Issue 57.
All-Union Astronomical and Geodetic Society.
Moscow: State Publishing House of Technical and Theoretical Literature, 1953.
204 p. Paperback. Regular format.

This essential annual reference for professional and amateur astronomers was prepared by the editorial board of the All-Union Astronomical and Geodetic Society, led by prominent Soviet astronomers Pavel Ivanovich Bakulin and Konstantin Konstantinovich Dubrovsky. Published in 1953 for the 1954 observing year, this 57th issue contains the "variable section" with detailed ephemerides, predictions for celestial events, and specialized data crucial for observational planning. Released by the main Soviet publisher of scientific literature at the dawn of the space age, this practical yearbook reflects the high level of Soviet astronomical science and its organized dissemination to a broad scientific community during the early Cold War period.