Columbia subject headings:
Harvard subject headings:
Architects--Germany
Architectural firms--Germany.
Architecture--Germany--21st century.
Architecture--Germany--History--20th century
Engel, Jürgen J. K., 1954---Criticism and interpretation.
Zimmermann, Michael, 1956---Criticism and interpretation.
Princeton subject headings:
Architecture--Germany--21st century.
Architecture--Germany--History--20th century.
Engel, Jürgen J. K.
KSP Engel und Zimmermann.
Zimmermann, Michael, 1954-