found: De mystieke lyriek van Lucas van Mechelen (1595/96 - 1652), 1977:title page (door Dr. K. Porteman)
found: Liber amicorum Prof. dr. Kåre Langvik-Johannessen, 1989:title page (Karel Porteman)
found: The emblem tradition and the Low Countries, 1999:title page (Karel Porteman [co-editor])
found: Emblemata sacra, 2007:series title page (Karel Porteman, Katholieke Universiteit Leuven, Belgium)
found: Bibliothèque nationale de France online catalog, viewed February 21, 2018(authorized access point: Porteman, Karel (1938-....); other data in authority record: born 1938; specialist in the literature of emblems; professor at the Katholieke Universiteit Leuven, Faculteit letteren)
found: Mededelingenblad van de Leuvense Germanisten, jaargang 16 (2003), viewed online on February 21, 2018(caption: Kijken naar de dansers en minder naar de dans: Karel Porteman (promotie 1966); Prof. dr. Karel Porteman; born 1938; professor of Dutch literature at the Katholieke Universiteit te Leuven; received emeritus status in 2002-2003) - https://alum.kuleuven.be/germaanse/mededelingenblad/porteman.htm