^Christianity and monasticism in the Fayoum oasis: essays from the . - Page 72 Martin Krause, Gawdat Gabra, Saint Mark Foundation - 2005 "In the following year the Coptologist Carl Schmidt and the Irish magnate Sir Chester Beatty bought several piles of papyri from an antique dealer in Cairo. Later investigations revealed that the manuscripts had been found in a dwelling in ."
^Stefan Rebenich: Theodor Mommsen und Adolf Harnack: Wissenschaft und Politik im Berlin des ausgehenden 19. Jahrhunderts. p. 211.
^The Herakleopolite Nome: a catalogue of the toponyms - Page 31 Maria Rosaria Falivene - 1998 "In the 1920s and 1930s, the coptologist Carl Schmidt was very active as a purveyor of papyri to German universities4: through him were acquired P.Giss. Univ. 19 5 and the papyri now in the collection of Erlangen University (including P.Erl.58, ."
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