TY  - BOOK
AU  - Soffel, Michael
AU  - Langhans, Ralf
TI  - Space-time reference systems
SN  - 9783642302251
U1  - 522 
PY  - 2013///
CY  - Berlin
PB  - Springer
KW  - Space and time
KW  - Geodetic astronomy
ER  -