1) G. Gioda and G. Maier: Direct search solution of an inverse problem in elastoplasticity: Identification of cohesion, friction angle and in-situ stress by pressure tunnel tests, Int. J. for Numerical Methods in Engineering, Vol. 15, pp. 1823-1848, 1980.
2) A. Cividini, G. Gioda and G. Barla: Calibration of a rheological material model on the basis of field measurements, Proc. of the Fifth Int. Conf. on Numerical Methods in Geomechanics, Nagoya, pp. 1621-1628, 1985.
3) Y. Ichikawa and T. Ohkami: A parameter identification procedure as a dual boundary control problem for linear elastic materials, Soil Mechanics and Foundations, Japanese Society of Soil Mechanics and Foundation Engineering, Vol. 32, No. 2, pp. 35-44, 1992.
4) S. Sakurai and K. Takeuchi: Back analysis of measured displacements of tunnels, Rock Mechanics and Rock Engineering, Vol. 16, pp. 173-180, 1983.
5) 小嶋啓介・足立紀尚・荒井克彦: 砂質地山トンネル掘削に伴う地盤物性定数の逆解析, 土木学会論文集, No. 406, pp. 167-174, 1989.