Shtokalo, I. Z. <br/><br/>
Linear differential equations with variable co-efficients :  criteria of stability and unstability of their solutions / 
I. Z. Shtokalo 
 - Delhi :  Hindustan,  1961 
 - vi, 100 p. ;  22 cm. 
 - International monographs on advanced mathematics and physics .
<br/><br/> Text in English and Russian 
<br/><br/>Bibliography: p. 93-100 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Linear<br/>Linear differential variable co-efficients
<br/><br/><label>Dewey Class. No.: </label>517.382