Schaff, Philip. "Ch. 33: The Didache Literature." The Oldest Church Manual Called the Teaching of the Twelve Apostles. Second Edition, Revised and Enlarged. New York: Funk & Wagnalls, 1886, 140-158.
Anyone who has read Schaff's work on Church History knows that he typically provides copious bibliographies, often lightly annotated. This chapter is no different. It is significant tht in this work, published less than three years after the Didache was first published in December 1883, there are 18 pages of listed works. There was a substantial explosion of interest. However, because of the many years which have passed and the technological advances which have changed the nature of bibliographic research, I merely observe that his list is carefully arranged and annotated.