The adjustment of level tubes at meridians plane by cameras «AFU-75» equatorial platforms.

Authors:
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  1. Kuznecov A. N. Geodezicheskaja astronomija. M. – Nedra. 1966.
  2. Lapushka K. K. Sputnikovaja fotokamera AFU-75 Rukovodstvo dlja raboty. AO LGU. Astrosovet AN SSSR. – Riga–Moskva, 1971