M. Schaefer

The Ac-5 (Fejokoo) quadrangle of Ceres: Geologic map and geomorphological evidence for ground ice mediated surface processes

R. Jaumann, F. Preusker, T. Roatsch, 2018, Icarus.

Red Bed-Hosted Oncolitic Manganese Ore of the Paleoproterozoic Soutpansberg Group, Bronkhorstfontein, South Africa

J. Gutzmer, N. Beukes, M. Schaefer, 2002 .

Late Paleoproterozoic Mn-rich oncoids: Earliest evidence for microbially mediated Mn precipitation

J. Gutzmer, N. Beukes, M. Schaefer, 2001 .

Carbonic fluid inclusions in Paleoproterozoic carbonate-hosted Zn-Pb deposits in Griqualand West, South Africa

J. Gutzmer, J. Huizenga, L. Greyling, 2006 .

Mineral chemistry of sphalerite and galena from Pb-Zn mineralization hosted by the Transvaal Supergroup in Griqualand West, South Africa

J. Gutzmer, N. Beukes, L. Greyling, 2004 .

Paleoproterozoic Mississippi Valley-type Pb-Zn deposits of the Ghaap group, Transvaal supergroup in Griqualand West, South Africa

M. Schaefer, 2009 .