Feshchenko, S. F. <br/><br/>
Asymptotic methods in the theory of linear differential equations / 
S.F. Feshchenko, N.I. Shkil, and L.D. Nikolenko. Translated by Scripta Technica 
 - New York :  American Elsevier Pub. Co.,  1967 
 - xvi, 270 p. :  ill. ;  24 cm. 
 - Modern analytic and computational methods in science and mathematics v.10. .
<br/><br/> Translation of Asimptoticheskie metody v teorii lineinykh differentsialnykh uravenii 
<br/><br/>Bibliography: p. 261-267. 
<br/><br/><br/>engrus 
<br/><br/><label>LCCN: </label>67-028448 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Linear<br/>Asymptotic expansions