Hartmann, P.

Hartmann, P., 2001. Iron and manganese removal : simple methods for drinking water, (Working papers on water supply and environmental sanitation / SKAT no. 1) St. Gallen, Switzerland: SKAT (Swiss Centre for Development Cooperation in Technology and Management). Available at: https://www.ircwash.org/sites/default/files/Hartmann-2001-Iron.pdf.