found: Ens inquantum ens, 1979:title page (Ludger Honnefelder)
found: Scientia transcendens, 1990:title page (Ludger Honnefelder) page facing title page (born 1936; professor of philosophy at Universität Bonn)
found: Albertus Magnus und die kulturelle Wende im 13. Jahrhundert, 2012:title page (Ludger Honnefelder) page 4 of cover (Ludger Honnefelder, Prof. Dr. Dr. h.c., professor emeritus of philosophy at Universität Bonn; also taught at Humboldt-Universität zu Berlin between 2005 and 2012; former director of the Albertus-Magnus-Institut)