About determination of geodetic azimuth from the observations of two stars located in the same vertical plane and symmetrically with respect to the zenith

1
Lviv Politecnic National University

1.    P. S. Zakatov. Kurs vysshej geodezii. M., Geodezizdat, 1950
2.    A. M. Starostin. Opredelenie geodezicheskogo azimuta iz nabljudenij prohozhdenij zvezd v meridiane. Trudy CNIIGAiK, Vkp. 147. M., 1962.