Media type: E-Article Title: Topological and Nonstandard Extensions Contributor: Di Nasso, Mauro; Forti, Marco Published: Springer Science and Business Media LLC, 2005 Published in: Monatshefte f�r Mathematik, 144 (2005) 2, Seite 89-112 Language: English DOI: 10.1007/s00605-004-0255-2 ISSN: 1436-5081; 0026-9255 Keywords: General Mathematics Origination: Footnote: