Botz, M. K. & Mason, S. E. (1990): Prevention of Acid Drainage from Gold Mining in the Western United States and Impact on Water Quality. – Int. J. Mine Water, 9 (1-4): 27-41, 5 tab.; Castro Verde.
Xavier, A. G. (1990): Environmental-Biochemical Aspects of Heavy Metals in Acid Mine Water. – Int. J. Mine Water, 9 (1-4): 43-55, 2 tab.; Castro Verde.
Miller, S. D., Jeffery, J. J. & Murray, G. S. C. (1990): Identification and Management of Acid Generating Mine Wastes - Procedures and Practices in South-East Asia and the Pacific Regions. – Int. J. Mine Water, 9 (1-4): 57-67, 5 Abb.; Castro Verde.
Carvalho, P., Richards, D. G., Fernández-Rubio, R. & Norton, P. J. (1990): Prevention of Acid Mine Drainage at Neves-Corvao Mine, Portugal. – Int. J. Mine Water, 9 (1-4): 71-84, 6 fig.; Castro Verde.
Kleinmann, R. L. P. (1990): At-Source Control of Acid Mine Drainage. – Int. J. Mine Water, 9 (1-4): 85-96, 1 fig.; Castro Verde.
Bagdy, I. & Sulyokm, P. (1990): Case Example on Acid-Resistent Bulkhead in Hungary. – Int. J. Mine Water, 9 (1-4): 97-109, 7 fig.; Castro Verde.
Singh, G., Bhatnagar, M. & Sinha, D. K. (1990): Environmental Management of Acid Water Problems in Ming Areas. – Int. J. Mine Water, 9 (1-4): 113-131, 8 fig.; Castro Verde.
Sobek, A. A., Rastogi, V. & Benedetti, D. A. (1990): Prevention of Water Pollution Problems in Mining: The Bactericide Technology. – Int. J. Mine Water, 9 (1-4): 133-148, 9 fig., 6 tab.; Castro Verde.
Bosman, D. J., Clayton, J. A., Maree, J. P. & Adlem, C. J. L. (1990): Removal of Sulphate from Mine Water with Barium Sulphide. – Int. J. Mine Water, 9 (1-4): 149-163, 5 fig., 6 tab.; Castro Verde.
Jones, C. I. & Silva, M. F. (1990): The Treatment and Removal of Mine Water at Neves Corvo Mine. – Int. J. Mine Water, 9 (1-4): 165-178, 4 fig., 4 tab.; Castro Verde.
Straskraba, V. & Moran, R. E. (1990): Environmental Occurence and Impacts of Arsenic at Gold Mining Sites in the Western United States. – Int. J. Mine Water, 9 (1-4): 181-191, 2 fig., 1 tab.; Castro Verde.
Duarte, J. C., Estrada, P., Beaumont, H., Sitima, M. & Pereira, P. (1990): Biotreatment of Tailings for Metal recovery. – Int. J. Mine Water, 9 (1-4): 193-206, 4 fig., 3 tab.; Castro Verde.
Real, F. & Franco, A. (1990): Tailings Disposal at Neves-Corvo Mine, Portugal. – Int. J. Mine Water, 9 (1-4): 209-221, 4 fig., 4 tab.; Castro Verde.
Palmer, J. P. (1990): Reclamation and Decontamination of Metalliferous Mining Tailings. – Int. J. Mine Water, 9 (1-4): 223-235, 2 fig., 3 tab.; Castro Verde.
Nunes, J. F., Richards, D. G. & Gama, H. A. (1990): Mine Water and Environmental Protection - The Somincor Case. – Int. J. Mine Water, 9 (1-4): 237-253, 5 fig., 2 tab.; Castro Verde.
Metcalfe, B. (1990): Establishing Long-Term Vegetational Cover on Acidic Mining Waste Tips by Utilising Consolidated Sewage Sludges. – Int. J. Mine Water, 9 (1-4): 255-267, 4 fig., 2 tab.; Castro Verde.
Kleinmann, R. L. P. (1990): Acid Mine Water Treatment using Engineered Wetlands. – Int. J. Mine Water, 9 (1-4): 269-276; Castro Verde.
Sammarco, O. (1990): Abandoning Mines: Hydrodynamic Evolution Controlled in Order to avoid Surface Damage. – Int. J. Mine Water, 9 (1-4): 277-289, 4 fig.; Castro Verde.
