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2. Büeker, Ch , Huenges, E. , Lippmann, E. , Rauen, A. , Streit, K.M. , Wienand, J. & Soffel, H.C. , 1990. KTB Pilot Hole-Results obtained in the KTB Field-Laboratory, KTB Report 90-8, pp. 1-29, Schweilzerbart'sche Verlagsbuchhandlung, Stuttgart.
3. Thermal Properties of KTB Oberpfalz VB Core Samples at Elevated Temperature and Pressure;Buntebarth;Scientific Dulling,1991
4. Geothermal Investigations in the KTB Locations Oberpfalz and Schwarzwald
5. The measured and the predicted temperature profile in the KTB pilot-hole;Burkhardt;Scientific Drilling,1991