@incollection{j.2002counting,
  address = {Florenz},
  author = {Contreni, John J.},
  booktitle = {Word, Image, Number. Communication in the Middle Ages},
  editor = {Contreni, John J. and Cascian, Santa},
  interhash = {fc1c8a7e7f60ee7050cde325155bbd2e},
  intrahash = {bf137f90582c0ee91ab13e59eaf7bf2f},
  pages = {43-83},
  title = {Counting, Calendars, and Cosmology. Numeracy in the Early Middle Ages},
  year = 2002
}