An image from document digi.ub.uni-heidelberg.de:::designtheoretisches_kolloquium1985
This image appears in clusters: 00000f00071bcb5b4ca150fd81ccaea42c301747f145941bd9434e7a0f4e3e247f8cdcb5 000004007a43af04b404a7a08069542dc49de62d84ad5ca1806c40e6fe5b06a07bd9bc28