TY  - BOOK
AU  - Heilig , R.
AU  - van Amerongen, C., tr.
TI  - Contribution to the theory of box-girders of arbitrary cross-sectional shape
T2  - C and C A Library Translation
U1  - 624.1772 
PY  - 1971///
CY  - London
PB  - Cement and Concrete Association
N1  - Translation of the paper 'Beitrag zur therie der kastentrager beliebiger querschnittsform'. Der Stahlbau, Vol.30, No.11. 1961. pp.333-349
ER  -