TY - BOOK AU - Garcia-Rio Eduardo AU - Kupeli Demir N AU - Vazquez-Lorenzo Ramon TI - Osserman manifolds in semi-Riemannian geometry SN - 3-540-43144-6 U1 - 516.373 PY - 2002/// CY - Berlin PB - Springer-Verlag KW - Riemannian geometry ER -