VON IMHOFF, H. & RITTER, A. Varlin - Umbrella - An example of modern marouflage and its problems, 2008
Hans-Christoph von Imhoff, Axel Ritter This article was published in Restauro 8/2008. To access the whole article (in German) follow the link below: VON IMHOFF, H. & RITTER, A. Varlin - Umbrella - An...