Positional contact micrometer of the astronomical universal instrument

1
Poltava gravimetric observatory of the Institute of Geophysics NAS of Ukraine named after S.I. Subotin; Lviv Polytechnic National University
2
Poltava gravimetric observatory of the Institute of Geophysics NAS of Ukraine named after S.I. Subotin
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  2. Dolgov P. N. Opredelenie vremeni po sposobu Cingera universal'nym instrumentom s primeneniem samoregistrirujushhego mikrometra i tablicy pozicionnyh uglov. Trudy CNIIGAiK. vyp. 24, 1938.
  3. Kolupaev A. P. Opredelenie astronomicheskih dolgot I klassa na severe pri pomoshhi universala s kontaktnym mikrometrom. Trudy CNIIGAiK, vyp. 81, M., 1951.
  4. Kolupaev A. P., Mauerer V. G., Starostin A. M. Prakticheskoe rukovodstvo po geodezicheskoj astronomii. Trudy CNIIGAiK, vyp. 148, M., 1962.
  5. General Catalogue of 33 342 stars for the epoch 1950. Vol. IV. Washington, D. C., 1937.