Alexander Beider
Alexander Borisovich Beider (Russian: Александр Борисович Бейдер, IPA: [ɐlʲɪkˈsandr bɐˈrʲisəvʲɪdʑ ˈbʲejdʲɪr]; Yiddish: אלכסנדר ביידער, IPA: [alɛkˈsandər ˈbɛɪdər]; born 1963) is the author of reference books in the field of Jewish onomastics and the linguistic history of Yiddish.