Warntjes, Immo 'The origins of the medieval calendar tradition in the Latin West', Sacha Stern, Calendars in the maling: the origins of late antique and medieval calendars, Leiden / Boston, Brill, 2021, 129-187, Immo Warntjes.
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2021
Warntjes, Immo 'Isidore of Seville and the formation of medieval computus, Andrew Fear & Jamie Wood, A companion to Isidore of Seville, Leiden / Boston, Brill, 2020, 457 - 523, Immo Warntjes.
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2020
Warntjes, Immo Warntjes, I. (2020) The mechanics of lunar calendars and the modes of calculating Easter, AD 400-1100: contexts and perspectives. In La conoscenza scientifica nell'alto medioevo. (273-308), Centro italiano di studi sull'alto medioevo.
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2020
Warntjes, Immo A.D. 672 - the apex of apocalyptic thought in the early medieval Latin West?, Veronika Wieser et al., Empire, death, and afterlife in Christianity, Islam, and Buddhism, Berlin, de Gruyter, 2020, 202 - 233, Immo Warntjes.
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2020
Warntjes, Immo Warntjes, I. The final countdown and the reform of the liturgical calendar in the early Middle Ages, In Matthew Gabriel & James T. Palmer, Apocalypse and reform from Late Antiquity to the Middle Ages, 2019, 51 - 75,.
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2019
Warntjes, Immo Warntjes, I., Introduction: state of research on late antique and early medieval computus, Late Antique calendrical thought and its reception in the early Middle Ages. Proceedings of the 3rd International Conference on the Science of Computus in Ireland and Europe, Immo Warntjes & D?ibh? ? Cr?in?n, Brepols, 2017, 1 - 42.
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2017
Warntjes, Immo Warntjes , I 2016 , Computus as scientific thought in Ireland and the early medieval West . in R Flechner & S Meeder (eds) , The Irish in early medieval Europe: identity, culture and religion . Red Globe Press ..
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2016
Warntjes, Immo Warntjes , I 2014 , ' An Irish eclipse prediction of AD 754: the earliest in the Latin West ' , Peritia , vol. 24-25 , pp. 108-115 . https://doi.org/10.1484/J.PERIT.5.102741.
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2014
