TY  - BOOK
AU  - Walter,Ulrich
TI  - Astronautics: the physics of space flight 
SN  - 9783527410651
PY  - 2012///
CY  - Weinheim, Germany
PB  - Wiley-VCH
KW  - Astronautics
N1  - Includes bibliographical references and index
ER  -