TY  - BOOK
AU  - Petkov, Vesselin
TI  - Relativity and the nature of spacetime
SN  - 9783642019524
U1  - 530.11 
PY  - 2009///
CY  - New York
PB  - Springer
KW  - Space and time
N1  - Includes bibliographical references and index
ER  -