Boyer, Charles P.; Galicki, Krzysztof: Sasakian geometry, hypersurface singularities, and Einstein metrics.
(English).
In:
Slovák, Jan
and Čadek, Martin (eds.): Proceedings of the 24th Winter School "Geometry and Physics".
Circolo Matematico di Palermo, Palermo, 2005.
pp. [57]-87
