1. Ball, J.W., Nordstrom, D.K., 1991. User’s manual for WATEQ4F with revised data base. U.S. Geol. Surv. Open-File Report 91-183, 189p.
2. Temporal geochemical variations in above- and below-drainage coal mine discharge;Burrows;Appl. Geochem.,2015
3. Oxidation of iron in coal mine drainage;Cole;Wat. Pollut. Control Fed.,1977
4. Passive aerobic treatment of net-alkaline, iron laden drainage from a flooded underground anthracite mine, Pennsylvania, USA;Cravotta;Mine Water Environ.,2007
5. Cravotta, C.A., III, 2013. Apparent rates of Fe(II) oxidation and associated hydrogeochemical interactions in an extensively mined watershed, Pennsylvania, USA, in: International Mine Water Association 2013 Symposium, Golden, Colorado, pp. 319–324.