Petrovski I G <br/><br/>
Ordinary differential equations 
Petrovski I G 
 -  1966 
 - Selected Russian Publications in the Mathematical Sciences Ed by Richard A Silverman .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Equations
<br/><br/><label>Dewey Class. No.: </label>B331, K6