He published several works on the history of Dutch nazi literature, among others a biography of George Kettmann, one of the most prominent Dutch nazi writers.
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Since 1987 he is one of the editors of the Dutch publishing company Flanor.
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In 2013 he lectured at the Sorbonne University (Paris, France) about "Fascisme and Nazism in Dutch Litterature (1940-1945)".
Willem de Kooning | Willem Dafoe | Willem Blaeu | Willem Janszoon | Willem Mengelberg | Willem Roggeman | Herman Willem Daendels | Willem Drees | Willem-Alexander of the Netherlands | Willem van Otterloo | Willem Schouten | Willem Kloos | Willem Klein | Willem II (football club) | Willem II | Willem de Vlamingh | Willem Buiter | John Willem Gran | Willem Verstegen | Willem van Hoogstraten | Willem van Enckevoirt | Willem van de Sande Bakhuyzen | Willem Sassen | Willem P.C. Stemmer | Willem Frederik Hermans | Willem C. Vis Moot | Willem B. Drees | Willem Abraham Wythoff | Pieter Willem Korthals | Jan Willem Storm van Leeuwen |