1943–1944
Pages 47-48
Otto Piene, 1982
Otto Piene, 1973
Otto Piene, 1990
Otto Piene, 1992
Otto Piene, 1999
Otto Piene, 1983
Otto Piene, 2005
Otto Piene, 1975
Otto Piene, 2002
Otto Piene, 1974