<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>5893</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>workingpaper</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2022-02-17</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">A Perpetual Calendar Slide Rule</title>
    <abstract language="eng">We present a method and demonstrate the construction of an analog (mechanical/graphical) perpetual calendar device for the Gregorian calendar system. It allows to calculate the weekdays of a day in any year (and vice versa).</abstract>
    <identifier type="urn">urn:nbn:de:bvb:898-opus4-58935</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <licence>Creative Commons - CC BY-ND - Namensnennung - Keine Bearbeitungen 4.0 International</licence>
    <author>Oliver Steffens</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Slide Rule</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Perpetual Calendar</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gregorian calendar</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Analog Computing Devices</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="16315">Information und Kommunikation</collection>
    <thesisPublisher>Ostbayerische Technische Hochschule Regensburg</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-oth-regensburg/files/5893/Steffens_Perpetual_Calendar_Slide_Rule.pdf</file>
  </doc>
</export-example>
