Frank Klais
- Die Bauinstallationen im Baulos SBT 3.1. Dans: Geomechanics and Tunnelling, v. 12, n. 6 (décembre 2019). (2019):
- Grautschenhof contract - Construction of an intermediate access under complex local conditions. Dans: Geomechanics and Tunnelling, v. 10, n. 6 (novembre 2017). (2017):
- Particular aspects of the tendering contract SBT3.1 "Tunnel Grautschenhof" / Besondere Aspekte des Ausschreibungsprojekts SBT3.1 Tunnel Grautschenhof. Dans: Geomechanics and Tunnelling, v. 8, n. 6 ( 2015). (2015):