Longuski, James M.  <br/><br/>
Introduction to orbital perturbations 
James M. Languski, Felix R. Hoots and George E. Pollock IV 
 - Switzerland  Springer  2022 
 - xxii, 339p. 
 - Space Technology Library .
<br/><br/> index given; ill. 
<br/><br/><label>ISBN: </label>9783030897604 
<br/><br/><label>Subjects--Topical Terms: </label><br/>planetary equations<br/>variational equations
<br/><br/><label>Universal Decimal Class. No.: </label>530.7  / LON