Мерне јединице у КЗ и КН (in Serbian). Republic Geodetic Authority of the Republic of Serbia. Archived from the original on 4 March 2012. Retrieved 6 September 2010.
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Мерне јединице у КЗ и КН (in Serbian). Republic Geodetic Authority of the Republic of Serbia. Archived from the original on 4 March 2012. Retrieved 6 September 2010.