TY  - BOOK
AU  - Held, A..
TI  - General relavity and gravitation:One hundred years after the birth of albert einstein:Vol.II / 
SN  - 0-306-40266-1
U1  - Ck0jN 
PY  - 1969///
CY  - New York : 
PB  - Plenum Press , 
KW  - Relativity and Gravition
ER  -