Colour Fields - Colour Spaces - Colour Experience Birgit Laschke-Hubert, Galerie Meier Freiburg, 2008. Translated by Felicity Lunn.
Colour Fields - Colour Spaces - Colour Experience
The Art of Composing Heide M Roeder, Baden-Wuerttembergische Bank Donaueschingen, 2009.
The Art of Composing