Michel Carlana: Roger Boltshauser, Kiln Tower, Cham, Switzerland Ofenturm für das Ziegelei-Museum, Cham 01.03.2022 Michel Carlana: Roger Boltshauser, Kiln Tower, Cham, Switzerland Kiln Tower for the Brickworks Museum, Cham Casabella 931 3.2022, S. 52ff. Casabella (931 3/2022), pp. 52ff.