Indo-European Lexicon, Pokorny Master PIE EtymaArkivert 20. april 2016 hos Wayback Machine., side 249, Linguistics Research Center, College of Liberal Arts, The University of Texas at Austin, hentet fra Julius Pokorny: Indogermanisches etymologisches Wörterbuch, Bern: Francke, 1959, 1989.
Indo-European Lexicon, Pokorny Master PIE EtymaArkivert 20. april 2016 hos Wayback Machine., side 249, Linguistics Research Center, College of Liberal Arts, The University of Texas at Austin, hentet fra Julius Pokorny: Indogermanisches etymologisches Wörterbuch, Bern: Francke, 1959, 1989.
«Denmark». The World Factbook. CIA. Arkivert fra originalen 18. september 2015. Besøkt 9. februar 2010.