@inbook {2021, title = {Calendars, Astronomical Tables, and Easter Tables in the Western Christian World}, booktitle = {Prognostication in the Medieval World. A Handbook}, series = {De Gruyter Reference}, year = {2021}, pages = {718-722}, publisher = {De Gruyter}, organization = {De Gruyter}, address = {Berlin}, isbn = {978-3-11-050120-9}, author = {Nothaft, Philipp}, editor = {Heiduk, Matthias and Herbers, Klaus and Lehner, Hans-Christian} }