1. Rock engineering investigations for the prediction of performance of the Gjøvik Olympic Mountain Hall;Barton,1994
2. Gjøvik Olympic Mountain Hall. Engineering geological investigations and construction supervision;Bollingmo,1994
3. Low Cost Road Tunnels;Borge Pedersen,1984
4. Designing and excavating underground power plants;Broch;Water Power and Dam Construction,1982
5. The development of unlined pressure shafts and tunnels in Norway;Broch,1982