Chebotarev, G.A. <br/><br/>
The Motion, Evolution of Orbits, and Origin of Comets 

 - Dordrecht:  Reidel Publishing Company  1972 
 - 521p. ; 23 cm. 
<br/><br/> Proceedings of the 45th. Symposium of the International Astronomical Union held in Leningrad on Augustu 4-11, 1970 
<br/><br/><label>ISBN: </label>90-277-0207-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomía