참고문헌
- Sivilingenier Oystein H. Storme, 1982, 'Tunnel Break Through Beneath 85m Water at Ringedalsvatn' in Norwegian Tunnelling Technology, Norwegian Soil and Rock Engineering Association. pp.53-55
- O. solvik, 1982, Underwater piercing of a tunnel, In: Norwegian Hydropower Tunnelling. NSREA, pp111 -114
- B.Bardal, et. al, 1982, Lake tap-the Norwegian method. In: Norwegian Hydropower Tunnelling. NSREA. pp. 115-119
- Bjorn Buen, 1988, 'Lake Taps', in Norwegian Tunnelling Technology, Norwegian Soil and Rock Engineering Association, pp. 91-92
- Oddbjom Aasen, 1988, 'Rock Grouting', in Norwegian Tunnelling Technology, Norwegian Soil and Rock Engineering Association, pp. 103-105