Berechnung, Erkundung und Entwurf von Tunneln und Felsbauwerken / Computation, Exploration and Design of Tunnels and Rock Structures: Vorträge des 27. Geomechanik-Kolloquiums der Österreichischen Gesellschaft für Geomechanik / Contributions to the 27th Ge
“ Just as there is no loss of basic energy in the universe, so no thought or action is without its effects, present or ultimate, seen or unseen, felt or unfelt. ” ― Norman Cousins