Vortrag von Roger Boltshauser Summer School 2019 19.06.2019 Lecture by Roger Boltshauser Summer School 2019 Vortrag von Roger Boltshauser, Summer School des Studio Boltshauser der ETH Zürich, 19:30 Uhr, Brunnen Lecture by Roger Boltshauser, Summer School by Studio Boltshauser at ETH Zurich, 7:30 p.m., Brunnen