»While Radoy here deliberately uses an altogether concrete, i.e. rational language of form that places her in the tradition of Concrete/Constructivist art, she has already abandoned the postulate of transparency, both in terms of form and in terms of content, for the spaces she constructs are totally enclosed, such that only their outer form is identifiable as rational. What essentially differentiates her work from the Concrete/Constructivist ideology is her use of colour and, in particular, the way she handles it.« // Hans Peter Riese, in: Exhibition catalogue »Vis-à-Vis«; The harmony of opposites. On the works of Karin Radoy and Klaus Staudt. //