1. Structure of homogeneous Riemannian spaces with zero Ricci curvature;Alekseevskiĭ, D. V.;Funkcional. Anal. i Prilo\v{z}en.,1975
2. On homogeneous Riemannian manifolds;Ambrose, W.;Duke Math. J.,1958
3. Groups on analytic manifolds;Bochner, Salomon;Ann. of Math. (2),1947
4. Hermitian manifolds with zero curvature;Boothby, William M.;Michigan Math. J.,1958
5. Kählerian coset spaces of semisimple Lie groups;Borel, Armand;Proc. Nat. Acad. Sci. U.S.A.,1954