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Rice 1999, p.215; Hornung 2012, p.146; Baud 2010, p.71. Rice, Michael (1999). Who is Who in Ancient Egypt. Who's who. London & New York: Routledge. ISBN978-0-203-44328-6. Hornung, Erik; Krauss, Rolf; Warburton, David, eds. (2012). Ancient Egyptian Chronology. Handbook of Oriental Studies. Leiden, Boston: Brill. ISBN978-90-04-11385-5. ISSN0169-9423. Baud, Michel (2010). "The Old Kingdom". In Lloyd, Alan B. (ed.). A companion to ancient Egypt. Blackwell companions to the ancient world. Chichester: Wiley-Blackwell. pp.63–80. ISBN978-1-40-515598-4.
Waddell 1971, pp.53–57. Waddell, William Gillan (1971). Manetho. Loeb classical library, 350. Cambridge, Massachusetts; London: Harvard University Press; W. Heinemann. OCLC6246102.
Stevenson Smith 1971, p.191; Theis 2015, p.58. Stevenson Smith, William (1971). "The Old Kingdom in Egypt". In Edwards, I. E. S.; Gadd, C. J.; Hammond, N. G. L. (eds.). The Cambridge Ancient History, Vol. 1, Part 2: Early History of the Middle East. Cambridge: Cambridge University Press. pp.145–207. ISBN978-0-52-107791-0. Theis, Christoffer (2015). "Userkare. Ein ephemerer Herrscher des Alten Reiches'" [Userkare. An ephemeral ruler of the Old Kingdom]. Sokar (in German). 30: 56–67.
Clayton 1994, p.64; Rice 1999, p.215; Baker 2008, p.487; Bierbrier 2008, pp.249–250; Strudwick 2005, p.9; Spalinger 1994, p.305. Clayton, Peter (1994). Chronicle of the Pharaohs. London: Thames & Hudson. ISBN978-0-500-05074-3. Rice, Michael (1999). Who is Who in Ancient Egypt. Who's who. London & New York: Routledge. ISBN978-0-203-44328-6. Baker, Darrell (2008). The Encyclopedia of the Pharaohs: Volume I - Predynastic to the Twentieth Dynasty 3300–1069 BC. Stacey International. ISBN978-1-905299-37-9. Bierbrier, Morris L. (2008). Historical Dictionary of Ancient Egypt. Historical dictionaries of ancient civilizations and historical eras. Vol.22 (2nded.). Lanham, Md.: Scarecrow Press. ISBN978-0-81-086250-0. Strudwick, Nigel C. (2005). Texts from the Pyramid Age. Writings from the Ancient World (book 16). Atlanta: Society of Biblical Literature. ISBN978-1-58983-680-8. Spalinger, Anthony (1994). "Dated texts of the Old Kingdom". Studien zur Altägyptischen Kultur. 21: 275–319. JSTOR25152700.
Stevenson Smith 1971, p.191; Hayes 1970, pp.178–179; Grimal 1992, p.81. Stevenson Smith, William (1971). "The Old Kingdom in Egypt". In Edwards, I. E. S.; Gadd, C. J.; Hammond, N. G. L. (eds.). The Cambridge Ancient History, Vol. 1, Part 2: Early History of the Middle East. Cambridge: Cambridge University Press. pp.145–207. ISBN978-0-52-107791-0. Hayes, William (1970). "The Old Kingdom in Egypt". In Edwards, I. E. S.; Gadd, C. J.; Hammond, N. G. L. (eds.). The Cambridge ancient history, Vol. 1, Part 1. Cambridge: Cambridge University Press. pp.178–179. ISBN978-0-52-107051-5. Grimal, Nicolas (1992). A History of Ancient Egypt. Translated by Ian Shaw. Oxford: Blackwell publishing. ISBN978-0-63-119396-8.
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Spalinger 1994, p.305, foonote 76. Spalinger, Anthony (1994). "Dated texts of the Old Kingdom". Studien zur Altägyptischen Kultur. 21: 275–319. JSTOR25152700.
Spalinger 1994, p.305, footnote 76. Spalinger, Anthony (1994). "Dated texts of the Old Kingdom". Studien zur Altägyptischen Kultur. 21: 275–319. JSTOR25152700.
Clayton 1994, p.64; Rice 1999, p.215; Baker 2008, p.487; Bierbrier 2008, pp.249–250; Strudwick 2005, p.9; Spalinger 1994, p.305. Clayton, Peter (1994). Chronicle of the Pharaohs. London: Thames & Hudson. ISBN978-0-500-05074-3. Rice, Michael (1999). Who is Who in Ancient Egypt. Who's who. London & New York: Routledge. ISBN978-0-203-44328-6. Baker, Darrell (2008). The Encyclopedia of the Pharaohs: Volume I - Predynastic to the Twentieth Dynasty 3300–1069 BC. Stacey International. ISBN978-1-905299-37-9. Bierbrier, Morris L. (2008). Historical Dictionary of Ancient Egypt. Historical dictionaries of ancient civilizations and historical eras. Vol.22 (2nded.). Lanham, Md.: Scarecrow Press. ISBN978-0-81-086250-0. Strudwick, Nigel C. (2005). Texts from the Pyramid Age. Writings from the Ancient World (book 16). Atlanta: Society of Biblical Literature. ISBN978-1-58983-680-8. Spalinger, Anthony (1994). "Dated texts of the Old Kingdom". Studien zur Altägyptischen Kultur. 21: 275–319. JSTOR25152700.
Goedicke 1988, pp.117–118 & 121. Goedicke, Hans (1988). "The death of Pepi II Neferkare". Studien zur Altägyptischen Kultur. 15: 111–121. JSTOR44324580.
Spalinger 1994, p.309. Spalinger, Anthony (1994). "Dated texts of the Old Kingdom". Studien zur Altägyptischen Kultur. 21: 275–319. JSTOR25152700.
Spalinger 1994, p.305. Spalinger, Anthony (1994). "Dated texts of the Old Kingdom". Studien zur Altägyptischen Kultur. 21: 275–319. JSTOR25152700.
Callender 1991, p.98. Callender, Vivianne Gae (1991). "A contribution to discussion on the title of sƷt nṯr". Studien zur Altägyptischen Kultur. 18: 89–111. JSTOR44325756.
Grimal 1992, pp.82–83; Strudwick 2005, pp.353 & footnote 25 p. 377; Verner 2002, p.355; Zibelius-Chen 1990, p.349. Grimal, Nicolas (1992). A History of Ancient Egypt. Translated by Ian Shaw. Oxford: Blackwell publishing. ISBN978-0-63-119396-8. Strudwick, Nigel C. (2005). Texts from the Pyramid Age. Writings from the Ancient World (book 16). Atlanta: Society of Biblical Literature. ISBN978-1-58983-680-8. Verner, Miroslav (2002). The Pyramids: the Mystery, Culture, and Science of Egypt's Great Monuments. New York: Grove Press. ISBN978-0-80-219863-1. Zibelius-Chen, Karola (1990). "Politische Opposition im Alten Ägypten" [Political opposition in ancient Egypt]. Studien zur Altägyptischen Kultur (in German). 17: 339–360. JSTOR25150160.
Brand 2002, p.256. Brand, Peter J. (2002). "Review: Abusir and Saqqara in the year 2000 by Miroslav Bárta, Jaromír Krejčí". Journal of the American Research Center in Egypt. 39: 254–256. doi:10.2307/40001162. JSTOR40001162. S2CID191611152.
Spalinger 1994, p.305; Berlev 1989, pp.56–63. Spalinger, Anthony (1994). "Dated texts of the Old Kingdom". Studien zur Altägyptischen Kultur. 21: 275–319. JSTOR25152700. Berlev, Oleg Dmitrievich (1989). "Once more the tradition of king Userkare (VI dynasty)". Древний Восток (Drevnii Vostok) (in Russian): 56–63.
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Rice 1999, p.215; Hornung 2012, p.146; Baud 2010, p.71. Rice, Michael (1999). Who is Who in Ancient Egypt. Who's who. London & New York: Routledge. ISBN978-0-203-44328-6. Hornung, Erik; Krauss, Rolf; Warburton, David, eds. (2012). Ancient Egyptian Chronology. Handbook of Oriental Studies. Leiden, Boston: Brill. ISBN978-90-04-11385-5. ISSN0169-9423. Baud, Michel (2010). "The Old Kingdom". In Lloyd, Alan B. (ed.). A companion to ancient Egypt. Blackwell companions to the ancient world. Chichester: Wiley-Blackwell. pp.63–80. ISBN978-1-40-515598-4.
Waddell 1971, pp.53–57. Waddell, William Gillan (1971). Manetho. Loeb classical library, 350. Cambridge, Massachusetts; London: Harvard University Press; W. Heinemann. OCLC6246102.
Rice 1999, p.215; Baker 2008, p.487; Stock 1949, pp.30–31. Rice, Michael (1999). Who is Who in Ancient Egypt. Who's who. London & New York: Routledge. ISBN978-0-203-44328-6. Baker, Darrell (2008). The Encyclopedia of the Pharaohs: Volume I - Predynastic to the Twentieth Dynasty 3300–1069 BC. Stacey International. ISBN978-1-905299-37-9. Stock, Hanns (1949). "Die erste Zwischenzeit Ägyptens. Untergang der Pyramidenzeit, Zwischenreiche von Abydos und Herakleopolis, Aufstieg Thebens" [The First Intermediate Period of Egypt: The fall of the pyramid age, the intermediate kingdoms of Abydos and Heracleopolis, and the rise of Thebes]. Analecta Orientalia: Commentationes Scientificae de Rebus Orientis Antiqui (in German). 31. OCLC1521209250.
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