boomerang & tomahawk, 2021 by Parallel Media – Barbara Doser and Hofstetter Kurt even odd even, 2004 by Barbara Doser, Music by Hofstetter Kurt fatal plastic, 2017/2022 Mushroom Codes | Champignoncodes, 2020-2021 Bergamo, 2018 / 2021 Cov_Sculpture, 2020 Cov_Notice Board, 2020