1. Aegerter & Bosshardt AG, 2006. Belchentunnel. Schadenplan. Bauwerkskontrollen 1985–2005. Schematische Darstellung festgestellter Schäden. Tabellen und Situation 1:2500. Rohr Basel (Ost) und Rohr Basel (West). Schematic maps, 7398 / 2+3.
2. Thermal conductivity of cementitious grouts and impact on heat exchanger length design for ground source heat pumps;Allan;HVAC&R Res.,1999
3. Amann, F., Uenduel, Oe., Loew, S., Kaiser, P. 2013. Fracture processes and in-situ fracture observations in Gipskeuper. Published Report Bundesamt für Strassen (ASTRA) Nr. 1422, Chair of Engineering Geology, ETH Zurich. http://www.mobilityplattform.ch.
4. Amstad, C., Kovári, K., 2001. Untertagbau in quellfähigem Fels. Research report 52/94, 5408.01, Geotechnical Institute, ETH Zurich. 226 pp.
5. Swelling of sulphatic claystones — some fundamental questions and their practical relevance;Anagnostou;Geomech. Tunnel.,2010