Yakubovich V A <br/><br/>
Linear differential equations with periodic coeffi 
Yakubovich V A; Starzhinskii V M 
 - New York  Wiley           1975 
 - xii,386p.  cm. 
<br/><br/><label>ISBN: </label>0 7065 1480 7 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Equations
<br/><br/><label>Dewey Class. No.: </label>B33,2, L5.1