Petrovsky, I.G. <br/><br/>
Lectures on partial differential equations /  
I.G. Petrovsky ; tr. A. Shenitzer. 
 - 1a ed. 
 - New York :  Interscience publishers,   1966 
 - x, 245 p. :  íl. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecuaciones diferenciales parciales 
<br/><br/><label>LC Class. No.: </label>QA374   / P48 1966