Demkov Yu N <br/><br/>
Variational principles in the theory of collisions 

 -  1963 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>32283 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Atomic physics
<br/><br/><label>Dewey Class. No.: </label>C294, K33