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References
- ↑ Kalesmaki, Joel. "Types of Greek Numerology" . Retrieved 2009-06-26.
- ↑ Smith, William, ed. (1870). "Petosiris". Dictionary of Greek and Roman Antiquities. Retrieved 2009-06-26.
- ↑ Venerabilis, Beda. De Divinatione Mortis Et Vitae Petosyris Ad Necepsum Regem Aegypti Epistola (in Latin). OCLC 155903264.
- ↑ Neugebauer, O.; G. Saliba (October 1988). "On Greek Numerology". Centaurus . 31 (3): 189–206. Bibcode:1988Cent...31..189N. doi:10.1111/j.1600-0498.1988.tb00737.x.
- ↑ Rust, Martha Dana (1999). "Art of Beekeeping Meets the Arts of Grammar: A Gloss of "Columcille's Circle"". Philological Quarterly . 78.
- ↑ Prioreschi, Plinio (2003). "Medieval Medicine". A History of Medicine. Vol. 5. Horatius Press. p. 728. ISBN 9781888456059.
