TY  - BOOK
AU  - Kahn, F D (Ed.)
TI  - Investigating the universe 
T2  - Astrophysics and space science library
SN  - 90-277-1325-1
PY  - 1981///
CY  - Boston: 
PB  - D. Reidel Publishing Company, 
KW  - Astrodynamics
KW  - Astrodynamique
ER  -