1. Gersberg, R. M., Lyon, S. R., Elkins, B. V. and Goldman, C. R. 1984. The removal of heavy metals by artificial wetlands. Proceedings of the Water Reuse Symposium III. Future of Water Reuse. 1984, Denver, CO. Vol. 2, pp.639–648. AWWA Research Foundation.
2. Retention of selected heavy metals: Cd, Cu, Pb in a hybrid wetland system