The German continental deep drilling program (KTB) : site-selection studies in the Oberpfalz and Schwarzwald - Emmermann, R (Rolf); Wohlenberg, Jurgen, 1933 (Berlin : Springer-Verlag, 1989)
Keywords: Boring -- German(West) -- Oberpfalz Religion; Earth -- Crust; Geology -- Germany(west) -- Oberpfalz Religion