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WvdVlugt. en Professor Willem van der Vlugt law professor Leiden University Painting by Menso Kamerlingh Onnes Icones Leidenses leidenuniv nl Menso Kamerlingh Onnes PDold Uploaded with Icones Leidenses Leiden University faculty Professors from the Netherlands Law professors Menso Kamerlingh Onnes Rectores magnifici from Leiden