Article Hamid-Reza Giahi Yazdi (2020)
The Jalālī Calendar: the enigma of its radix date. Archive for History of Exact Sciences (pp. 165-182). (/isis/citation/CBB546781279/) unapi

Article Hamid-Reza Giahi Yazdi (2018)
The Mysterious Table of Lunar Crescent Visibility Attributed to Al-Bīrūnī and Ḥabash Al-Ḥāsib’s Contribution. Archive for History of Exact Sciences (pp. 89-98). (/isis/citation/CBB507308593/) unapi

Article Hamid-Reza Giahi Yazdi (2017)
Ibn Yūnus’ Report on Early Islamic Observations for Determining the Rate of Precession of Equinoxes. Suhayl: Journal for the History of the Exact and Natural Sciences in Islamic Civilisation (pp. 101-112). (/isis/citation/CBB742960557/) unapi

Article Hamid-Reza Giahi Yazdi; Pouyan Rezvani (2015)
Chronology of the Events of the Samarqand “Observatory and School” Based on some Old Persian Texts: a Revision. Suhayl: Journal for the History of the Exact and Natural Sciences in Islamic Civilisation (pp. 145-165). (/isis/citation/CBB719838609/) unapi

Article Yazdi, Hamid-Reza Giahi (2014)
The Fragment of Al-Kindi's Lost Treatise on Observations of Halley's Comet in A.d. 837. Journal for the History of Astronomy (p. 61). (/isis/citation/CBB001451064/) unapi

Article Giahi Yazdi, Hamid-Reza (2009)
Al-Khāzinī's Complex Tables for Determining Lunar Crescent Visibility. Suhayl: Journal for the History of the Exact and Natural Sciences in Islamic Civilisation (p. 149). (/isis/citation/CBB001023952/) unapi

Article Yazdi, Hamid-Reza Giahi (2004-2005)
False Dawn Theories in the Astronomy of the Islamic Period: A Preliminary Survey. Zeitschrift für Geschichte der Arabisch-Islamischen Wissenschaften (p. 103). (/isis/citation/CBB001024023/) unapi

Article Yazdi, Hamid-Reza Giahi (2002-03)
Naṣīr al-Dīn al-Ṭūsī on Lunar Crescent Visibility and an Analysis with Modern Altitude-Azimuth Criteria. Suhayl: Journal for the History of the Exact and Natural Sciences in Islamic Civilisation (p. 231). (/isis/citation/CBB000931704/) unapi