false 2308155 3854926006 9783854926009 1 1 http://www.goodreads.com/book/show/2308155.Meisterwerke_der_Optischen_Illusionen 37970 Al Seckel 89 17 4 0 false Sun Feb 01 00:00:00 -0800 2004 Tue Dec 11 06:43:21 -0800 2007 Tue Dec 11 06:45:01 -0800 2007