found: Unger, I. Die Bayernpartei, 1979 (subj.)t.p. (Bayernpartei) p. 27 etc. (founded 9/3/45 as the Bayerische Arbeiter- und Mittelstandspartei [no publs. in LC]; changed its name shortly thereafter to Mittelstands- und Bauernpartei [no publs. in LC] and again on 11/19/45 to Demokratische Union [no publs. in LC]; official name change to Bayernpartei occurred 11/16/46)
found: Brockhaus Enzyk., 1967(Bayernpartei, abgek. BP; founded 1947)
found: Bundesrep. Dtld., Teilausg. Bayern, 1979(BP, Bayernpartei)