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Kurt Walenta, Heinz-Jürgen Bernhardt, Thomas Theye: Cubic AgBiS2 (schapbachite) from the Silberbrünnle mine near Gengenbach in the Central Black Forest, Germany, in: Neues Jahrbuch für Mineralogie - Monatshefte (2004), Band 9, S. 425–432 doi:10.1127/0028-3649/2004/2004-0425
handbookofmineralogy.org
John W. Anthony, Richard A. Bideaux, Kenneth W. Bladh, Monte C. Nichols: Matildit, in: Handbook of Mineralogy, Mineralogical Society of America, 2001 (PDF 62,5 kB)