Columbia subject headings:
Isler, Heinz, 1926-
Shells (Engineering)
Harvard subject headings:
Architecture, Modern--21st century
Engineers--Switzerland.
Isler, Heinz, 1926-
Isler, Heinz, 1926---Criticism and interpretation.
Roofs, Shell
Shells (Engineering)
Structural engineering
Princeton subject headings:
Architecture, Modern--20th century.
Isler, Heinz, 1926-
Roofs, Shell.
Structural engineering.