text Groningen P.Noordhoff 1955 Ind v, 172 p.; 23 cm. v, 172 p.; 23 cm. POGORELOV, A.V. GEOMETRY 516.5 516.5POGd INLIS000000000031126 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)