People Sijbren Otto peoplepill id: sijbren-ottoSO 2 views today 2 views this weekSijbren OttoBiographyListsAlso ViewedListsSijbren Otto is in following listsBy field of workNotable people in academiaGender:MaleBy work and/or countryNotable EducatorsGender:MaleFrom our partnersSponsoredSijbren Otto