TY - BOOK AU - Contopoulos, George TI - The theory of orbits in the solar system and in stellar systems T2 - IAU Symposium; no. 25 PY - 1966/// CY - London PB - Academic Press KW - Celestial Mechanics KW - Hemelmechanica KW - NASA Thesaurus KW - Orbits KW - Solar System ER -