1. Subsidence above shallow tunnels in soft ground;Atkinson;J. Geotech. Eng. Div.,1977
2. Ground deformations resulting from shield tunnelling in London Clay;Attewell;Can. Geotech. J.,1974
3. Design and Performance of Excavations and Tunnels in Soft Clay;Clough,1977
4. Displacement around soft ground tunnels. General Report: Session IV, Tunnels in soil;Cording,1975
5. Analysis of subsidence over soft-ground tunnels;Ghaboussi,1978