AOK-Systems Bonn Domizil at Venusberg Rheinauen Carré Horticultural show Leverkusen Sculpture exhibition S-Carré Technical College Bonn Sport facilities of the University Würzburg		Project Johannis sprout, 2005 , fir, yellow painted, H 20m, horticultural show Leverkusen,  Landesgartenschau Leverkusen