Literature cited
V. A. Kotel'nikov et al., Radiotekh. élektron., No. 7 (1958).
G. P. Astaf'ev, V. S. Shebshaevich, and Yu. A. Yurkov, Radiotechnical Means for Navigating Aircraft [in Russian], Izd. Sov. radio, Moscow (1962).
Additional information
Translated from Izmeritel'naya Tekhnika, No. 6, pp. 29–31, June, 1967.
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Alexandrov, A.I., Lazarev, V.M. Digital device for measuring automatically the instant when an ASE (artificial satellite of the earth) is at the shortest distance from the point of observation. Meas Tech 10, 682–684 (1967). https://doi.org/10.1007/BF00980657
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DOI: https://doi.org/10.1007/BF00980657