J. Schaefer

Assessment of a possible genotoxic environmental risk in sheep bred on grounds with strongly elevated contents of mercury, arsenic and antimony.

S. Kevekordes, H. Dunkelberg, T. Gebel, 1996, Mutation research.

Mineralogical distribution of base metal sulfides in processing products of black shale-hosted Kupferschiefer-type ore

A. Schippers, S. Hedrich, A. Kamradt, 2018 .

An Integrated Process for Innovative Extraction of Metals from Kupferschiefer Mine Dumps, Germany

Hermann Wotruba, Bernd Friedrich, Axel Schippers, 2012 .

Comparative Bioleaching and Mineralogical Characterization of Black Shale-Hosted Ores and Corresponding Flotation Concentrates

A. Schippers, S. Hedrich, A. Kamradt, 2017 .

The Erosion of the Land

J. Schaefer, 1946 .