1. Rehabilitation at Silvermines;Farrell;Extract. Ind. Ireland Ann. Rev.,2002
2. Final Report of Expert Group for Silvermines County Tipperary, Lead and Other Relevant Metals, Office of Environmental Enforcement, Environmental Protection Agency, Ireland, 2004, 1–68.
3. ISO 11466 Soil quality-Extraction of trace elements soluble in aqua regia, International standard, 1995, 1–6.
4. EPA Method 6200: field portable X-ray fluorescence spectrometry for the determination of elemental concentrations in soil and sediment, available from: http://www.epa.gov/SW-846/pdfs/6200.pdf.
5. NIOSH Method 7702: lead by field portable XRF, available from: http://www.cdc.gov/niosh/nmam/pdfs/7702.pdf.