Pogorelov, A. V.  1919-2002. <br/><br/>
Hilbert's fourth problem / 
Aleksei Vasilʹevich Pogorelov ; translated by Richard A. Silverman ; edited by Irwin Kra, in cooperation with Eugene Zaustinskiy. 
 - Washington :  New York :  V. H. Winston ;  distributed solely by Halsted Press,  c1979. 
 - vi, 97 p. :  ill, ;  23 cm. 
<br/><br/> Translation of Chetvertai︠a︡ problema Gilʹberta.  Includes index. 
<br/><br/>Bibliography: p. 93-94. 
<br/><br/><label>ISBN: </label>0470267356 (Halsted) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry--Foundations.
<br/><br/><label>Dewey Class. No.: </label>516.1  / POH 1979