<div class="fn value">
Various authors</div>
Original scans are from <a rel="nofollow" class="external text" href="http://amshistorica.cib.unibo.it/scientia">AMS Historica</a>, the ancient text collection of <a rel="nofollow" class="external text" href="http://almadl.cib.unibo.it/">AlmaDL</a>, digital library of the <a href="//commons.wikimedia.org/wiki/Category:University_of_Bologna" title="Category:University of Bologna">University of Bologna</a>.