Discovery of very important manuscript sources for the Syro-Roman Lawbook : the opening of a new epoch of research in this unique monument of jurisprudence

History of asceticism in the Syrian Orient : a contribution to the history of culture in the Near East

A Tribute to Arthur Vööbus : studies in early Christian literature and its environment, primarily in the Syrian East

The Apocalypse in the Harklean Version: A Facsimile Edition of Ms. Mardin Orth. 35, Fol. 143r-159v

Studies in the history of the Estonian people : with reference to aspects of social conditions, in particular, the religious and spiritual life and the educational pursuit