Krasnoselskii, M.A. <br/><br/>
Convex functions and optical spaces   
by M.A. Krasnoselskii, Y.B. Ratickii and tr. by L.F. Boron 
 - Netherlands  P.Nordhoff Limited  1961 
 - x, 249p. 
<br/><br/><label>Dewey Class. No.: </label>515.73  / N611