Columbia subject headings:
Catholic Church. Diocese of Würzburg (Germany)--History--20th century.
Devotional exercises--History--20th century.
Liturgical reform--Germany--Würzburg--History--20th century.
Harvard subject headings:
Liturgical reform--Germany--Würzburg--History--20th century.
Liturgics--Germany--Würzburg--History--20th century.
Piety.
Würzburg (Germany)--Church history--20th century.
Princeton subject headings: