"ARGE für Rohbau beauftragt"(PDF). Karlsruhe–Basel Im Fokus (in German) (3). DB ProjektBau GmbH: 1. 2014. Retrieved 1 May 2016.
"Der Tunnel Rastatt"(PDF). Karlsruhe–Basel Im Fokus (in German) (3). DB ProjektBau GmbH: 1. 2011. Archived from the original(PDF; 1.2 MB) on 6 October 2014. Retrieved 1 May 2016.
Matthias Hudaff (2013). "Editorial"(PDF). Karlsruhe–Basel Im Fokus (in German) (2). DB ProjektBau GmbH: 1. Archived from the original(PDF; 273 kB) on 5 March 2016. Retrieved 2 May 2016.
"Probebohrungen in Rastatt"(PDF). Karlsruhe–Basel Im Fokus (in German) (2). DB ProjektBau GmbH: 3. 2012. Archived from the original(PDF; 940 kB) on 5 March 2016. Retrieved 2 May 2016.
"Der Tunnel Rastatt"(PDF). Karlsruhe–Basel Im Fokus (in German) (3). DB ProjektBau GmbH: 1. 2011. Archived from the original(PDF; 1.2 MB) on 6 October 2014. Retrieved 1 May 2016.
Matthias Hudaff (2013). "Editorial"(PDF). Karlsruhe–Basel Im Fokus (in German) (2). DB ProjektBau GmbH: 1. Archived from the original(PDF; 273 kB) on 5 March 2016. Retrieved 2 May 2016.
"Probebohrungen in Rastatt"(PDF). Karlsruhe–Basel Im Fokus (in German) (2). DB ProjektBau GmbH: 3. 2012. Archived from the original(PDF; 940 kB) on 5 March 2016. Retrieved 2 May 2016.