Shlyapnikov, Aleksei, Maksim Gorbunov, Gоrbachev Mark, and Ruslan Akmetdinov. 2020. “Archives of CrAO Spectral Observations. Catalogues of Objects and Images”. Acta Astrophysica Taurica 1 (1):23-29. https://doi.org/10.31059/aat.vol1.iss1.pp23-29.