31. Neugebauer 0., 1942. The Origin of the Egyptian Calendar// Journal of Near Eastern Studies. — V. 1. — P. 396—403.
32. Neugebauer 0., 1955. The Egyptian «Decans». // Vistas in Astronomy. — V. 1. — P. 47-51.
33. Neugebauer 0., 1975. A History of Ancient Mathematical Astronomy. — Berlin — Heidelberg — N. Y.: Springer—Verlag.
34. Neugebauer 0., 1980. On the Orientation of Pyramid // Centau-rus. — V. 24. — P. 1—3.
35. Neugebauer 0., Parker R., 1960, 1964, 1969. Egyptian Astronomical Texts. — V. I—III. — Providence — London: Brown Univ. Press.
36. Parker R., 1950. Calendars of Ancient Egypt. — Chicago: Univ. of Chicago Press.
37. Parker R., 1952. Sothis Dates and Calendar «Adjustment» // Revue d'egyptologie. — V. 9. — P. 101—108.
38. Parker R., 1959. A Vienna Demotic Papyrus on Eclipse- and Lunar-Omina. — Providence.
39. Parker R., 1971. The Calendar and Chronology// The Legacy of Egypt. Second Ed./Ed. J. R. Harris. — Oxford: Clarendon Press. — P. 13—26.
40. Parker R., 1974. Ancient Egiptian Astronomy // The Place of Astronomy in the Ancient World. — London: Oxford Univ. Press, — P. 51—65, PL 11 — 14.
41. Parker R., 1978. Egyptian Astronomy, Astrology and Calendari-cal Reckoning // Dictionary of Scientific Biography. — V. 15. — P. 709—727.
42. Petrie W. M. F., 1900, 1901. The Royal Tombs of the First Dynasty. V. 1—2. — London — Boston.
43. Petrie W. M. F., 1940. Wisdom of the Egiptians. — London.
44. Pogo Α., 1930. The Astronomical Ceiling-decoration in the Tomb of Senmut // Isis, — V. 14. — P. 301—325, PI. 11—20.
45. Pogo Α., 1932. Calendars of the Coffin Lids from Asyut // Isis. — V. 17. — P. 6—24.
46. Pogo Α., 1936. Egyptian Water Clocks // Isis. — V. 25. — P. 403-425.
47. Schott S., 1950. Altägyptische Festdaten. — Mainz.
48. Sloley R., 1924. Ancient Clepsydrae. // Ancient Egypt. — Pt. 2. — P. 43—50.
49. Sloley R., 1931. Primitive Methods of Measuring Time // The Journal of Egyptian Archaeology. — V. 17. — P. 166—178.
50. Tootner G. J., 1971. Mathematics and Astronomy // The Legacy j of Egypt. Second Ed./Ed. J. R. Harris. — Oxford: Clarendon Press. — P. 27—54.
51. Waerden B. L. van der, 1974; Science Awakening II. The Birth of Astronomy. — N. Y.: Oxford Univ. Press.
52. Winlock H. E., 1940. The Origin of the Ancient Egyptian Calendar I/ Proceeding of the American Philosophical Society. — V. 83, N 3. — P., 447—464.
53. Zäba Ζ., 1953. Orientation astronomique dans l'ancienne Egypte et la precession de Taxe du monde. — Prague.