Bainov D Et Al <br/><br/>
Oscillation Theory of Operator-Differential Equations 

 -  World Scientific  WSPC  1995 
<br/><br/><label>ISBN: </label>9789812832177 
<br/><br/><label>Source: </label>EBOOK 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics