↑"Implementation of the Charter in Hungary". Database for the European Charter for Regional or Minority Languages. Public Foundation for European Comparative Minority Research. คลังข้อมูลเก่าเก็บจากแหล่งเดิมเมื่อ 27 February 2014. สืบค้นเมื่อ 16 June 2014.
↑
Alexander M. Schenker. 1993. "Proto-Slavonic," The Slavonic Languages. (Routledge). pp. 60–121. p. 60: "[The] distinction between dialect and language being blurred, there can be no unanimity on this issue in all instances..." C.F. Voegelin and F.M. Voegelin. 1977. Classification and Index of the World's Languages (Elsevier). p. 311, "In terms of immediate mutual intelligibility, the East Slavic zone is a single language." Bernard Comrie. 1981. The Languages of the Soviet Union (Cambridge). pp. 145–146: "The three East Slavonic languages are very close to one another, with very high rates of mutual intelligibility...The separation of Russian, Ukrainian, and Belorussian as distinct languages is relatively recent...Many Ukrainians in fact speak a mixture of Ukrainian and Russian, finding it difficult to keep the two languages apart..."
ข้อมูล
Korunets', Ilko V. (2003). Contrastive Topology of the English and Ukrainian Languages. Vinnytsia: Nova Knyha Publishers. ISBN966-7890-27-9.
Pivtorak, Hryhoriy Petrovych (1998). Походження українців, росіян, білорусів та їхніх мов [The origin of Ukrainians, Belarusians, Russians and their languages] (ภาษายูเครน). Kyiv: Akademia. ISBN966-580-082-5.Litopys.kiev.ua
Shevelov, George Y. (1979). A Historical Phonology of the Ukrainian Language. Heidelberg: Carl Winter Verlag. ISBN3-533-02787-2.. Ukrainian translation is partially available online.