Rybka, S. (2005). Compiled catalogue of the MK spectral classifications, including astrometric and photometric data and its application. Кинематика и физика небесных тел.
Chicago-Zitierstil (17. Ausg.)Rybka, S.P. "Compiled Catalogue of the MK Spectral Classifications, Including Astrometric and Photometric Data and Its Application." Кинематика и физика небесных тел 2005.
MLA-Zitierstil (8. Ausg.)Rybka, S.P. "Compiled Catalogue of the MK Spectral Classifications, Including Astrometric and Photometric Data and Its Application." Кинематика и физика небесных тел, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.