1. The curvature and the integrability of almost-Kähler manifolds: a survey;Apostolov, Vestislav,2003
2. A splitting theorem for Kähler manifolds whose Ricci tensors have constant eigenvalues;Apostolov, Vestislav;Internat. J. Math.,2001
3. On minimal immersions of 𝑆² into 𝑆^{2𝑚};Barbosa, João Lucas Marquês;Trans. Amer. Math. Soc.,1975
4. Homogeneous polar foliations of complex hyperbolic spaces;Berndt, Jürgen;Comm. Anal. Geom.,2012
5. Classics in Mathematics;Besse, Arthur L.,2008