Kuranishi, M <br/><br/>
Lectures on involutive systems of partial differential equations    

 -  Sao Paulo,   1967 
 - 75p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>517.95(042.3)   / K7