Graves L.M. <br/><br/>
Proceedings of the International Congress of Mathematicians. Congress held at Cambridge, Massachusetts, USA, August 30 - September 6, 1950. Vol. I. 
Graves L.M., Smith P.A., Hille E., Zariski O., editors 
 - Providence, R. I.  Amer. Math. Soc.  1952 
 - 769 p. 
<br/><br/><label>Dewey Class. No.: </label>51:061.2/3