1. Estimating the true value of a wind farm;Bass,1995
2. EC, 1995. EC-DGXII 1995: ExternE Externalities of Energy — vol 6: Wind and Hydro. Eur 16525 EN Report. European Commission DGXII.
3. ENDS, 1996. The Ends Report, No. 263. Environmental Data Services Ltd, pp. 17–18.
4. ENDS, 1997. The Ends Report, No. 275. Environmental Data Services Ltd, pp. 43–44.
5. ENDS, 1998. The Ends Report, No. 277. Environmental Data Services Ltd, p. 35.