Gerhard Richter : abstraction - Westheider, Ortrud, 1964-; Westheider, Ortrud, 1964-; Philipp, Michael, 1962-; Philipp, Michael, 1962-; Elger, Dietmar, 1958-; Hortolani, Valerie; Bretz, Janice; Butin, Hubertus, 1964-; Krüger, Matthias, 1970-; Küster, Kerstin; Zweite, Armin, 1941- (Publication series by the Museum Barberini, 2020)