TY  - BOOK
AU  - Eckart, Andreas  .
TI  - The black hole at the centre of the milky way / 
SN  - 1-86094-567-8
U1  - B9641 
PY  - 2005///
CY  - London : 
PB  - Imperial College Press , 
KW  - Math - Black hole and milky way
ER  -