TY  - DATA
AU  - D.N. Kupeli
TI  - Singular Semi-Riemannian Geometry
SN  - 9789401587617
PY  - 1996///
PB  - Springer Netherlands
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-94-015-8761-7
ER  -