TY  - BOOK
AU  - Cahen, M..
TI  - Differential geometry and relativity / 
SN  - 90-277-0745-6
U1  - B6:30aCN 
PY  - 1989///
CY  - Dordrecht : 
PB  - D.Reidel Publishing Company , 
KW  - Mathematics
ER  -