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park avenue tower new york 1986 -
terrace tower oakbrook 1987 -
city bank chicago 1987 -
one & two liberty place philadelphia 1987 / 91 -
o`hare airport terminal 1 chicago 1987 -
o`hare airport connection way chicago 1987 -
o`hare airport underground train station chicago 1987 -
11 diagonal street johannesbourg 1988 -
425 lexington av. new york 1989 -
750 lexington av. new york 1989 -
300E 85th new york 1989 -
barnett center jacksonville 1990 -
hyatt hotel paris 1992 -
messeturm frankfurt 1992 -
messeturm / messehalle frankfurt 1992 -
one american plaza san diego 1992 -
120 n lasalle str. chicago 1992 -
mannheimer versicherung 1 mannheim 1992 -
munich order center munich 1992 -
hitachi tower singapore 1993 -
caltex tower singapore 1993 -
kudamm 70 berlin 1994 -
regierungspräsidium stuttgart -
prinzipal mutual life des moines 1996 -
Ku’damm 119 Berlin 1997