This map is not accurate !
View exact map: http://upload.wikimedia.org/wikipedia/commons/1/1a/Slavic_languages.png See documents:
Regular languages: http://www.sil.org/iso639-3/ http://www.loc.gov/standards/iso639-2/php/code_changes.php http://www.ethnologue.com/ http://www.ethnologue.com/show_family.asp?subid=292-16