Nazaikinskii, V. E. <br/><br/>
Contact geometry and linear differential equations/ 
by Vladimir E. Nazaikinskii, Victor E. Shatalov, Boris Yu. Sternin. 
 - Berlin ;  New York:  W. de Gruyter,  1992. 
 - vii, 216 p. ;  25 cm. 
 - De Gruyter expositions in mathematics,  6. .
<br/><br/>Includes bibliographical references (p. [211]-214) and index. 
<br/><br/><label>ISBN: </label>3110133814 (cloth : acid free) 
<br/><br/><label>LCCN: </label>92024930 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Linear.<br/>WKB, approximation.<br/>Equations différentielles linéaires.<br/>WKB, approximation.
<br/><br/><label>Dewey Class. No.: </label>515.35  / N334c