00541nam a2200157Ia 4500082001700000100003600017245008900053260003500142300002600177490003400203500005400237500000500291700003200296700002100328700003400349  a516bP746.HF  aPogorelov, Aleksei Vasil'evich.  aHilbert's fourth problembcEd. by Irwin Kra in cooperation with Eugene Zaustinskiy.  aWashingtonbV.H. Winstonc1979  avi, 97p. Index. bibl.  aScripta series in Mathematics  a"Translated from Russian by Richard A. Silverman"  a  aSilverman, Richard A. ; tr.  aKra, Irwin ; ed.  aZaustinskiy, Eugene ; jt. ed.