↑Romer, John (2013) [2012]. "Chapter 18 – The Lost Dynasty". A History of Ancient Egypt. Vol. 1. London, ENG: Penguin Books. pp. 221–222. ISBN978-1-8-4614377-9. Whatever else was taking place at the court of the Second Dynasty of kings, it is clear that the fundamental institutions of pharaonic government, its systems of supply, not only survived throughout that century and a half, but flourished to the extent that, when the kings emerge into the light of history again with the pyramid builders of the Third Dynasty, the state on the lower Nile was more efficient than it had ever been: that there was, therefore, strong institutional continuity.
↑Bard, Kathryn A. (2002) [2000]. "Chapter 4 – The Emergence of the Egyptian State". ใน Shaw, Ian (บ.ก.). The Oxford History of Ancient Egypt (paperback) (1st ed.). Oxford: Oxford University Press. p. 85. ISBN978-0-19-280293-4. There is much less evidence for the kings of the 2nd Dynasty than those of the 1st Dynasty until the last two reigns (Peribsen and Khasekhemwy). Given what is known about the early Old Kingdom in the 3rd Dynasty, the 2nd Dynasty must have been a time when the economic and political foundations were put in place for the strongly centralized state, which developed with truly vast resources. Such a major transition, however, cannot be demonstrated from the archaeological evidence for the 2nd Dynasty.
↑Walter Bryan Emery: Ägypten - Geschichte und Kultur der Frühzeit. Fourier, Munich 1964, p. 106.
↑Wolfgang Helck: Untersuchungen zur Thintenzeit. (Ägyptologische Abhandlungen, Volume 45), Otto Harrassowitz, Wiesbaden 1987, ISBN3-447-02677-4, pp. 104–111, 183.
↑Hermann A. Schlögl: Das Alte Ägypten. Geschichte und Kultur von der Frühzeit bis zu Kleopatra. Verlag C. H. Beck, München 2006, ISBN3-406-54988-8, p. 78.
↑I. E. S. Edwards: The early dynastic period in Egypt; Cambridge University Press, Cambridge 1964; p. 25.
Clayton, Peter A. Chronicle of the Pharaohs: The Reign-by-Reign Record of the Rulers and Dynasties of Ancient Egypt. London: Thames & Hudson Ltd., 2006. ISBN 0500286280.