Cathomas, Norbert, Benno Bühlmann, Anton Mulle, Hermann Christen, and August Husner. “Fire-Fighting and Hazardous-Materials Response Units in the Gotthard Road-Tunnel”. CHIMIA 58, no. 1-2 (January 1, 2004): 26. Accessed April 27, 2024. https://www.chimia.ch/chimia/article/view/2004_026.