Suchergebnis

• Foliations on Riemannian manifolds Tondeur, Philippe New York : Springer, 1988

• Geometry of Riemannian spaces Cartan, Elie Brookline, Mass. : Math Sci Pr., 1983

• Semi-Riemannian geometry with applications to relativity O'Neill, Barry New York : Acad. Pr., 1983