Trajectories of Artificial Celestial Bodies  As Determined from Observations 
Jean Kovalevsky 
 - Berlin, Heidelberg, New York  Springer - Verlag  1966 
 - XVI, 265 p  Tab., ill  23 cm 
<br/><br/> Contine index si bibliografie pe capitole  Proceedings of Symposium Held in Paris, april 20-23,1965