Media type: E-Article Title: Review: An Analysis of Nonpositional Numeral Systems Contributor: Straffin, Philip D. imprint: Mathematical Association of America, 2009 Published in: The College Mathematics Journal, 40 (2009) 5, Seite 391-392 Language: English ISSN: 0746-8342; 1931-1346 Keywords: MEDIA HIGHLIGHTS Origination: Footnote: