Christoph Flüeler,
founder and director
University of Fribourg
Fribourg/Freiburg, Bibliothèque cantonale et universitaire/Kantons- und Universitätsbibliothek, Ms. L 90, Front cover – Psalterium-Hymnarium Ordinis Fratrum Praedicatorum
http://www.e-codices.ch/en/bcuf/L0090/bindingA/270/Sequence-76