Manfred Freitag
- The Reißeck II pumped storage power station in Carinthia / Das Pumpspeicherkraftwerk (PSKW) Reißeck II in Kärnten. Dans: Geomechanics and Tunnelling, v. 4, n. 5 ( 2011). (2011):
- The Reißeck II pumped storage power station / Das Pumpspeicherkraftwerk (PSKW) Reißeck II. Dans: Geomechanics and Tunnelling, v. 4, n. 2 ( 2011). (2011):