Cf. Kammerzell, Frank. 2005. Old Egyptian and Pre-Old Egyptian: Tracing linguistic diversity in Archaic Egypt and the creation of the Egyptian language. In: Texte und Denkmäler des ägyptischen Alten Reiches, ed. by Stephan Johannes Seidlmayer, Thesaurus Linguae Aegyptiae 3, Berlin: Achet, 165-247, https://nbn-resolving.org/urn:nbn:de:kobv:b4-opus-24600, here: p. 230.