Lavrentiy M M <br/><br/>
Some improperly posed problems of mathematical physics 

 -  1967 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>75995 
<br/><br/><label>Source: </label> Textbook 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical physics
<br/><br/><label>Dewey Class. No.: </label>C:B, K71