Izbor literature

Wikipedia. 2009. < http://sl.wikipedia.org/wiki/švicarski_okraji >

About CH. 2009. < http://www.about.ch/>

The World Factbook. 2009.
< https://www.cia.gov/library/publications/the-world-factbook/geos/sz.html#Issues >

Swissworld 2009.
< http://www.swissworld.org/ >