Valhalla - Innovative pumped hydro storage facilities in Chile: Challenges from a rock mechanical point of view.Published in:Geomechanik und Tunnelbau, 2015, v. 8, n. 5, p. 387, doi. 10.1002/geot.201500031By:Marcher, Thomas;Bauer, Steffen;Allende, Marcos;Mathiesen, CarlosPublication type:Article