↑ abKurt Aland, en Barbara Aland, The Text of the New Testament: An Introduction to the Critical Editions and to the Theory and Practice of Modern Textual Criticism, transl. Erroll F. Rhodes, William B. Eerdmans Publishing Company, Grand Rapids, Michigan, 1995, p. 101.
C. Charalambakis, D. Hagedorn, D. Kaimakis, and L. Thüngen, Vier literarische Papyri der Kölner Sammlung, no. 4, Zeitschrift für Papyrologie und Epigraphik 14 (Barcelona: 1974), pp. 37–40.
B. Kramer and D. Hagedorn, Papyrologica Coloniensia VII, 2 (Cologne, 1978), pp. 88–89.