- - - - - REFERENCES - - - - - 

The following references are those found in the articles that are in the PAPERS section. Links have been placed to the reference whenever possible.

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“Age as Criterion of Moon’s Earliest Visibility”, The Observatory 103, 26-28.

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Ilyas, Mohammad (1984): "Limb Shortening and the Limiting Elongation for the Lunar Crescent's Visibility", The Quaterly Journal of the Royal Astronomical Society 25, 421-422.

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-Ilyas, Mohammad (1997): Astronomy of Islamic Calendar, A.S. Noordeen.

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-Kennedy ES, Hogendijk J.(1988): "Two Tables from an Arabic Astronomical Handbook for the Mongol Viceroy of Tibet", in Leichty E et al. A Scientific Humanist: Studies in Memory of Abraham Sachs. Philadelphia (PA): The University Museum. p. 233-242.

-King D. (1987): "Some Early Islamic Tables for Determining Lunar Crescent Visibility",  Annals of the New York Academy Sciences, 500 (1), 185-225. 

-King D. (1988): "Ibn Yanus on Lunar Crescent Visibiliry", Journal for History of Astronomy, 19, 155-168.

-King, D. (1991): "Lunar Crescent Visibility Predictions" in Medieval Islamic Ephemerides, in Seikaly S, Baalbaki R, Dodd P. Quest For Understanding: Arabic and Islamic Studies in Memory of Malcom H. Kerr. Beirut: American University of Beirut. p. 233-251. 

-King D, Samsó J. (2001): "Astronomical Handbooks and Tables from the Islamic World (750-1900): an Interim Report", Suhayl 2, 9-105.

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-Martin, René (1857): Mémoire sur le calendrier musulman et sur le calendrier hébraïque, Mallet-Bachelier.

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-Meeus, J. (1986): "Les perigées et le apogées de la Luna", L'Astronomie 100, 571-574.

-Meeus, Jean (1991): Astronomical Algorithms, Willmann-Bell.

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Odeh, Mohammad Sh. (2004): "New Criterion for Lunar Crescent Visibility", Experimental Astronomy 18, 39-64

-Peón, Baltasar (1863): Estudios de Cronología Universal.

-Proudfoot, Ian (2006): Old Muslim Calendars of Southeast Asia, Brill.

-Rashed, M.G.; Mokolf, M.G. (2017): "Suggestion of a conventional Islamic calendar", NRIAG Journal of Astronomy and Geophysics 6, 275-277.

-Rashed, M.M.;  Moklof, M.G.; Hamza, Alaa E. (2018): "Investigation the Arithmetical of Tabular Islamic calendar", NRIAG Journal of Astronomy and Geophysics 7, 20-21.

-Russell, H. N. (1916): "The Stellar Magnitudes of the Sun, Moon and Planets", Astrophysical Journal 43, 103-129.

-Reingold, Edward M., Dershowitz, Nachum (2002): Calendrical Tabulations 1900-2200, Cambridge University Press.

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-Samaha, Abd El-Hamid; Asaad, Adly Salama and Mikhail, Joseph Sidky (1969): "Visibility of the New Moon", Helwan Observatory Bulletin 815  1-37.

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-Schaefer, Bradley E. (1988b): "An Algorithm for Predicting the Visibility of the Lunar Crescent", in Proceddings of the IIIT Lunar Calendar Conference, The International Institute of Islamic Thought, p. 10-1-10-10.

-Schaefer, Bradley E. (1990): "Telescopic Limiting Magnitudes", Publications of the Astronomical Society of Pacific 102, 212-229.

-Schaefer, Bradley E. (1991): "Length of the Lunar Crescent", Quarterly Journal of the Royal Astronomical Society 32, 265-277.
-Schaefer B.E. (1992): "The length oyf the Lunar Month", Journal for the History of Astronomy, Archaeoastronomy Supplement 23, 33-42.

-Schaefer, Bradley E. (1993): "Astronomy and the Limits of Vision", Vistas in Astronomy 36, 311-361.

-Segura González, Wenceslao (2006): Hemerología. La ciencia de los calendarios, Acento 2000.

-Segura González, Wenceslao (2010): Nuestro calendario. Una explicación simple, científica y completa, eWT Ediciones.

-Segura González, Wenceslao (2013): "Tropical and Seasonal Year".

-Segura González, Wenceslao (2014): "Teorema de congruencia de Zeller. Aplicaciones".

-Segura González, Wenceslao (2017): Calendario hebrero, eWT Ediciones.

-Segura González, Wenceslao (2018): Movimientos de la Luna y el Sol. Una introducción, eWT Ediciones.
-Segura González, Wenceslao (2020a): "Tabular Calendar Islamic".
-Segura González, Wenceslao (2020b):
"Two lunar crescent visibility criteria: al-Khwarizmi and al-Qallas".

-Segura González, Wenceslao (2020c): "The illuminated area of the Moon exceeds half its surface".

-Segura González, Wenceslao (2020d): "Moon's crescent width".

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-Sultan, A. H. (2006): "First Visibility of the Lunar Crescent", The Observatory 126, 115-117.

-Sultan, A. H. (2007a): "Explaining and Calculating the Lenght of the New Crescent Moon", The Observatory 125, 227-231,

-Sultan, A. H. (2007b): "First Visibility of the Lunar Crescent: Beyond Danjon's Limit", The Observatory 127 (1) 53-59.

-Suter H.(1914): Die astronomischen Tafeln des Muhammed Ibn Musa al-Khwarizmi, in der Bearb. des Maslama Ibn-Ahmed al-Madjriti und der lat. Übers. des Athelhard von Bath auf Grund der Vorarb. von A. Bjørnbo und R. Besthorn hrsg. und komm. von H. Suter.

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-Vives, Teodoro J. (1971): Astronomía de posición, Alhambra.
-Yallop, B. D (1998).: "A Method for Predicting the First Sighting of the New Crescent Moon”, NAO Technical Note 69, 1-16.