- _Anally of the hymn:Veni Redemptor Gentium_ (Washington:Catholic University of America Press, 1940).
- _Stariji sačuvani spomenici latinske himničke poezije_ (Freiburg im Breisgau:Herder, 1950).
- _The Hymns of the Eastern Church_ (Freiburg im Breisgau:Herder, 1961).
- _Romanička himna s njemačkim prijevodom_ (Regensburg:Pustet, 1977.).