Columbia subject headings:
Bulgaria--Relations--Germany.
Bulgarian literature--20th century--History and criticism.
Bulgarian literature--Appreciation--Germany.
Dissertations, Academic--Bulgaria.
Germany--Relations--Bulgaria.
Harvard subject headings:
Bulgaria--Relations--Germany.
Bulgarian literature--20th century--History and criticism.
Bulgarian literature--Appreciation--Germany.
Dissertations, Academic--Bulgaria.
Germany--Relations--Bulgaria.
Princeton subject headings:
Bulgaria--Relations--Germany.
Germany--Relations--Bulgaria.