↑1.01.1Derksen, Rick (2008), “*jьz”, inEtymological Dictionary of the Slavic Inherited Lexicon (Leiden Indo-European Etymological Dictionary Series; 4), Leiden; Boston: Brill,→ISBN,page217: “prep./pref. ‘from, out of ’”
^Snoj, Marko (2016), “iz”, inSlovenski etimološki slovar [Slovenian Etymology Dictionary] (in Slovene), 3rd edition,https://fran.si: “Pslovan. *jьz”
^Olander, Thomas (2001), “iz”, inCommon Slavic Accentological Word List[1], Copenhagen: Editiones Olander: “(prep. and prefix) (PR 146)”
Vasmer, Max (1964–1973), “из”, inOleg Trubachyov, transl.,Этимологический словарь русского языка [Etymological Dictionary of the Russian Language] (in Russian), Moscow: Progress
Trubachyov, Oleg, editor (1983), “*jьz”, inЭтимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 9 (*jьz – *klenьje), Moscow: Nauka, page 6
Georgiev, Vladimir I., editor (1979), “из”, inБългарски етимологичен речник [Bulgarian Etymological Dictionary] (in Bulgarian), volume 2 (и – крепя̀), Sofia: Bulgarian Academy of Sciences Pubg. House, page15