1. Alonso E. E. and Olivella S. (2008). “Modelling tunnel performance in expansive gypsum claystone.” Proc. 12th Int. Conf. of Int. Association for Computer Methods and Advances in Geomechanics Indian Institute of Technology Powai Mumbai India 891–910.
2. Amberg W. and Russo M. (2001). “Seismic design of underground structures the Bolu tunnel.” Proc. World Tunnel Congress and 27th General Assembly Taylor & Francis London 137–145.
3. Anagnostou G. (1992). “Importance of unsaturated flow in predicting the deformations around tunnels in swelling rock.” Proc. Scientific Colloquium “Porous and Fracturated Unsaturated Media. Transports and Behaviour ” Swiss Federal Institute of Technology Lausanne Switzerland 343–359.
4. Anagnostou G. Pimentel E. and Serafeimidis K. (2010). “Swelling of sulphatic claystones—Some fundamental questions and their practical relevance.” Proc. 59th Geomechanics Colloquy 2010 Session on Tunnel construction in swelling ground Swiss Federal Institute of Technology Zurich Switzerland 1–12.
5. Squeezing rocks in tunnels;Barla G.;News J. Int. Soc. Rock Mech.,1995