TY  - BOOK
ED  - Bridge Engineering Conference 3:1991 mar.10-13: Denver, Col-orado
ED  - National Research Council. Transportation Research Board (E-.U.A.)
TI  - Third bridge engineering conference: papers presented at th-e Third Bridge Engineering Conference, March 10-13,1991, De-nver, Colorado
CY  - Washington, D. C. : TRB
ER  -