Heynlin, Johannes: Resolutorium dubiorum circa celebrationem missarum occurrentium. Köln: Heinrich Quentell, 1495. (ULB Bonn, Inc 551)
Heynlin, Johannes: Resolutorium dubiorum circa celebrationem missarum occurrentium. Köln: Heinrich Quentell, 1495. (ULB Bonn, Inc 551)