text Groningen P. Noopdhoff 1948 Ind 170 p.; 24 cm. 170 p.; 24 cm. VERSLUYS, J. MATHEMATICS 518.2 518.2VERg INLIS000000000031132 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)