Summa (Quaestiones Ordinariae) Art. LXIII-LXVII

Gordon A. Wilson is professor emeritus at the University of North Carolina. He is the general coordinator of the Leuven edition of the Opera omnia of Henry of Ghent.

Girard J. Etzkorn is a former professor emeritus at St. Bonaventure University. He died in 2023.

Bernd Goehring is a member of the Scotistic Commission of America, centered at the Medieval Institute, University of Notre Dame.

.They are assisted by Linda N. Etzkorn, M.A.