Rumyantsev, V. ., and V. Biryukov. “Observations of Artificial Space Objects With the 2.6 M Shajn Telescope at the Crimean Astrophysical Observatory”. Acta Astrophysica Taurica, vol. 3, no. 2, June 2022, pp. 1-7, doi:10.34898/aat.vol3.iss2.pp1-7.