The voyage of Máel Dúin A study in early Irish voyage literature. Followed by an ed. of Immram curaig Máele Dúin from the Yellow book of Lecan in Trinity College, Dublin - Oskamp, Hans P. A. 1936-1990 (Wolters-Noordhoff, 1970)
Zugl.: Amsterdam, Univ., Diss. - Mit Zsfassung in niederländ. Sprache