found: The Sankt Gall Priscian commentary. Part 1, 1996:title page (Rijcklof Hofman)
found: Groote, Gerard. Scripta contra simoniam et proprietarios, 2016:title page (Rijcklof Hofman)
found: Radboud Universiteit, Titus Brandsma Instituut website, viewed February 24, 2022:link to Over ons page (under Medewerkers: R.H.F. Hofman (Rijcklof); academic staff member; studied Medieval Latin at the Universiteit Utrecht and canon law at Radboud Universiteit Nijmegen; he is editing the works of Gerard Groote (Gerardus Magnus)) - https://www.ru.nl/personen/hofman-r/
found: Koninklijke Bibliotheek (National Library of the Netherlands) online catalog, viewed February 24, 2022(authorized access point: Hofman, R.H.F. (Rijcklof Henri Frans ; 1958-); other data in authority record: ISNI 0000 0003 9857 4004)