TY  - BOOK
AU  - Naber, Gregory
TI  - Spacetime and singularities: an introduction
T2  - London Mathematical Society student texts number 11
SN  - 9780521336123
U1  - 530.11 
PY  - 1993///
CY  - New York
PB  - Cambridge University Press
KW  - Teoría de la relatividad
ER  -