1. Allen, James P. 1984. The Inflection of the Verb in the Pyramid Texts, Malibu.
2. Allen, James P. 20143. Middle Egyptian. An Introduction to the Language and Culture of Hieroglyphs, Cambridge.
3. Allen, James P. 2017. Grammar of the Ancient Egyptian Pyramid Texts. Volume 1: Unis, Winona Lake.
4. Asyūṭ = Griffith, Francis. L. 1889. The Inscriptions of Siûṭ and Dêr Rifeh, London.
5. Barta, Winfried. 1995. Bemerkungen zum Verständnis des „Indefinitpronomens“ tw, in: Dieter Kessler & Regine Schulz (eds.) Gedenkschrift für Winfried Barta, Frankfurt am Main, 17–18.