Bogaevski V N <br/><br/>
Algebaric methods in nonlinear perturbation theory 
Bogaevski V N; Povzner A 
 - New York       Springer Verlag         1991 
 - 265p.  cm. 
 - Applied Mathematical Sciences; 88 .
<br/><br/><label>Standard No.: </label>42171 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B33,2:52, N1