1. Settlement development caused by tunneling in soil;Attewell P. B.;Ground Eng.,1985
2. Predicting the dynamics of ground settlement and its derivatives caused by tunneling in soil;Attewell P. B.;Ground Eng.,1982
3. Stresses and Displacements in a Cross-Anisotropic Soil
4. Bjerrum L. and Eggestad A. (1963). “Interpretation of loading test on sand.” Proc. 3rd European Conf. on Soil Mech. and Found. Eng. 199–203.
5. Bourdeau P. L. (1986). “Analyse probabiliste des tassements d’un massif de sol granulaire.” Ph.D. thesis No. 628 Swiss Federal Institute of Technology Lausanne Switzerland.