Periodic orbits, stability and resonances:   / Proceedings of a symposium conducted by the University of São Paulo, the Technical Institute of Aeronautics of São José dos Campos, and the National Observatory of Rio de Janeiro, at the University of São Paulo, São Paulo, Brasil, 4-12 September, 1969 

 - Dordrecht:   D. Reidel Publishing Company,   1990 
 - xiv, 530p.  
<br/><br/><label>ISBN: </label>9789027701701 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Periodic 
<br/><br/><label>Subjects--Index Terms: </label>Astronomy 
<br/><br/><label>Universal Decimal Class. No.: </label>521.1:523.2(082.2)  / L0