1 | A report on the investigation of the Taff litter problem |
2 | The impact of ferruginous minewater break-outs on the environmental quality of the Rivers Rhymney, Ebbw and Sirhowy : summary report |
3 | A survey of ferruginous minewater impacts in the Welsh coalfields |
4 | A survey of ferruginous minewater impacts in the Welsh coalfields |