Papers etc.

Hansen, H.O. 2006: 
The Houting Project - The Second Largest Nature Restoration Project in Denmark.
– Meanders 13: 2-5.

Hansen, H.O. 2006:
Restoring rivers in Denmark - The houting project.
In: Seminar Report - Sminar on Restoration of Rivers modified by Hydropower and dredging. - Seminar hosted by Th European Centre for River Restoration in Helsinki, Finland November 2006.

Hansen, M.M., Nielsen, E.E. & Mensberg, K.-L.D. 2006: 
Underwater but not out of sight: genetic monitoring of effective population size in the endangered North Sea houting (Coregonus oxyrhynchus).
- Can. J. Fish. Aquat. Sci. 63(4): 780-787.