Contreni, John J. |
Counting, calendars and cosmology : numeracy in the early Middle Ages / John J. Contreni |
In: Word, image, number. p. 43-83 |
Word, image, number : communication in the Middle Ages / edited by John J. Contreni and Santa Casciani |
[Tavarnuzze] : SISMEL-Edizioni del Galluzzo, 2002. |