== Eksterne henvisninger ==
* [http://www.americanscientist.org/issues/pub/third-base/ Third Base]
* [http://www.washingtonart.net/whealton/ternary.html Ternary Arithmetic] {{Webarchive|url=https://web.archive.org/web/20110514130533/http://www.washingtonart.net/whealton/ternary.html |date=14. maj 2011 }}
* [http://www.mortati.com/glusker/fowler/index.htm The ternary calculating machine of Thomas Fowler]
* [http://www.mathsisfun.com/numbers/convert-base.php?to=ternary Ternary Base Conversion]
* [http://www.americanscientist.org/issues/pub/third-base/3 Gideon Frieder's replacement ternary numeral system]
* [http://studia.scienceontheweb.net/visualization.php Visualization of numeral systems]
Kommunikation Videnskab Matematik Naturvidenskab