@misc{Kostandyan_G._R._M, author={Kostandyan, G. R. and Gigoyan, K. S.}, howpublished={online}, abstract={In this paper, we continue spectral class determinations for optically faint periodic variables from the Catalina Sky Survey (CSS) database. Based on Gaia Data Release 3 (DR3) BP/RP spectroscopic database, 169 objects are confirmed as G and K-type stars, while 78 objects are confirmed as M-type stars.}, title={M type Periodic Variables from Catalina Sky Survey}, type={Electronic journal}, keywords={Astrometry, Space Sciences, Archaeoastronomy and Astronomy in Culture}, }