1. Precipitating action of carbon in cyanide solutions;Feldtmann;Min. Sci. Press,1915
2. On the Metallurgy of Carbonaceous Gold Ores;Dorfman;Bull. Can. Inst. Min. Metall.,1922
3. Re-treatment of Mother Lode (California) carbonaceous slime tailings;Leaver;Bureau of Mines, Tech. Paper,1930
4. Gold in the Gold Coast;Junner;Ghana Geol. Surv. Dept. Mem.,1973
5. Cyanidation and Concentration of Gold and Silver Ores;Dorr,1950