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Ralf Volker Sander 
(born 15 December 1963 ) is an international active sculptor.
His best known works include Lady Bird Transformation (mirage), a public sculpture for Busan Film Center BIFF Busan, South Korea, commissioned in 2011 and erected in August 2012 The memorial for Martin Heinrich Klaproth was erected
on the campus of Technology University Berlin in Berlin Germany, 25.06.1996.