TY  - BOOK
AU  - Blumel, Dieter  others
TI  - IL:5 : convertible roofs. 
U1  - 721.0108 
PY  - 1972///
CY  - Germany
PB  - Institute of Lightweight Structures
KW  - Construction légère
KW  - Construction le�ge`re
KW  - Roofs Design and construction
KW  - lightweight construction
KW  - Lightweight construction
KW  - Buildings
ER  -