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Zeller, Christian Wikipedia (en)

Zeller, Christian 1822-1899 German National Library

VIAF ID: 20445280 (Personal)

Permalink: http://viaf.org/viaf/20445280

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, berlin 1872* Wikipedia (en)
'each of these four similar papers deals firstly with the day of the week and secondly with the date of easter sunday, for the julian and gregorian calendars. Wikipedia (en)
die grundaufgaben der kalenderrechnung auf neue und vereinfachte weise gelöst Wikipedia (en)
he also produced a reference card, [http://www.merlyn.demon.co.uk/zel-card.htm das ganze der kalender-rechnung] Wikipedia (en)
kalender-formeln Wikipedia (en)
'on calendrical calculations: Wikipedia (en)
, paris 1881* Wikipedia (en)
problema duplex calendarii fundamentale Wikipedia (en)

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