^ Rastorgujeva, V. S., Edelʹman, D. I. (2000–) “*h(u)u̯ar- / *h(u)u̯an- : hūr- / hūn- > *xvar- / xvan- : hūr- / hūn- (?)”, in Etimologičeskij slovarʹ iranskix jazykov [Etymological Dictionary of Iranian Languages] (in Russian), Moscow: Vostochnaya Literatura, pages 438-44
^ Tavernier, Jan (2007) Iranica in the Achaemenid Period (ca. 550–330 B.C.): Lexicon of Old Iranian Proper Names and Loanwords, Attested in Non-Iranian Texts, Peeters Publishers, →ISBN, page 556