1. Alpers, C. N., Blowes, D. W., Nordstrom, D. K., and Jambor, J. L. (1994) Secondary minerals and acid mine-water chemistry, (eds. J. L. Jambor and D. W. Blowes),Environmental Geochemistry Of Sulfide Mine-Wastes. Mineralogical Association of Canada, Short Course Handbook Vol. 22: p. 247–270.
2. Alpers, C. N. and Nordstrom, D. K. (1991) Geochemical evolution of extremely acid mine waters at Iron Mountain, California: are there any lower limits to pH? inProceedings, Second International Conference on the Abatement of Acid Drainage,Vol. 2: pp. 321–342.
3. Ball, J. W. and Nordstrom, D. K. (1991) User's manual for WATEQ4F, with revised thermodynamic data base and test cases for calculating speciation of major, trace, and redox elements in natural waters. U.S. Geological Survey Open-File Report 91-0183, 193 pp.
4. Bigham, J. M. (1994) Mineralogy of ochre deposits formed by sulfide oxidation, (eds. J. L. Jambor and D. W. Blowes),Environmental Geochemistry Of Sulfide Mine-Wastes. Mineralogical Association of Canada, Short Course Handbook Vol. 22: pp. 103–132.
5. Bigham, J. M., Carlson, L., and Murad, E. (1994) Schwertmannite, a new iron oxyhydroxtsulphate from Pyhasalmi, Finland, and other localities.Mineralogical Magazine,Vol. 58: pp. 641–648.