1. BEF analogy for analysis of box girders;Wright;J. Struct. Div., ASCE,1968
2. The structural behaviour of steel and concrete box girder bridges;Chapman;Struct. Engr.,1971
3. Membrane force acting on a box girder bridge;Shuskewich;J. Struct. Div., ASCE,1986
4. Membrane forces acting on a box girder bridge;Avial;J. Struct. Div. ASCE,1988
5. Elements of Stress Analysis;Heyman,1982