Advances in European Geothermal Research: Proceedings of the Second International Seminar on the Results of EC Geothermal Energy Research, held in Strasbourg, 4–6 March 1980 1980 · ENGLISH · PDF View details →
Seventh E.C. Photovoltaic Solar Energy Conference: Proceedings of the International Conference, held at Sevilla, Spain, 27–31 October 1986 1987 · ENGLISH · PDF View details →
