1. Lectures on Public Economics;Atkinson,1987
2. Bærum District Heating, 1999. District heating and district cooling at Fornebu — A proposal.
3. Taxation, Technology and the User Cost of Capital;Biørn,1989
4. Financial Theory and Corporate Policy;Copeland,1988
5. Danish Energy Agency, 2000. CO2 emissions form marginal electricity production plants in Denmark 2000–2020. Personal communication with Sigurd L Pedersen.