C.H. Roberts, An unpublished Fragment of the Fourth Gospel in the John Rylands Library,
Manchester, 1935; W.H.P. Hatch, The principal uncial manuscripts of the New Testament, Chicago 1939,
pl. 1; Comfort, Encountering the manuscripts, 2005, p. 144; B.Legras, Lire en Egypte d'Alexandre à l'Islam, 2002, p.88; Comfort-Barrett, p.356; Segno e Testo 3 (2005), pl. 8 a; Jaroš, Das Neue Testament (cd-ROM), 1.6