1. Zusammenhang zwischen Elektronischer Berechnung und Messung-Stand der Entwicklung für seicht-liegende Tunnel;Laabmayr;Rock Mechanics,1979
2. On the efficient analysis of shallow tunnels;Beer;Computers and Geotechnics,1985
3. Infinite elements;Bettess;International Journal of Numerical Methods in Engineering,1977
4. Advanced Implementation of the Boundary Element Method for Two- and Three-dimensional Elastostatics;Watson,1979
5. Implementation of Combined Boundary Element — Finite Element Analysis with Applications in Geomechanics;Beer,1986