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KITLV Demmeni J. Crumbling boulders in the Bloeoe River Borneo expedition led by Dr. A. W. Nieuwenhuis .tif nl Afbrokkelende rotsblokken in de Bloeoe tijdens de Borneoexpeditie onder leiding van dr Nieuwenhuis en Crumbling boulders in the Bloeoe River Borneo expedition led by Dr Nieuwenhuis cm exhibition history Universiteitsbibliotheek