Lehoux, A. P., Lockwood, C. L., Mayes, W. M., Stewart, D. I., Mortimer, R. J. G., Gruiz, K., & Burke, I. T. (2013). Gypsum addition to soils contaminated by red mud: implications for aluminium, arsenic, molybdenum and vanadium solubility. Environmental Geochemistry and Health, 35(5), 643-656. https://doi.org/10.1007/s10653-013-9547-6