TY  - BOOK
AU  - Opik,Ernst Julius
TI  - Interplanetary encounters
T2  - Developments in solar system and space science
SN  - 0444413715
PY  - 1976///
CY  - Amsterdam
PB  - Elsevier Science
KW  - Mechanics, Celestial
KW  - Gravitation
KW  - Planets
KW  - Orbits
N1  - Includes index; References : p. 145-147
ER  -