1. Benson, C. (1997) A review of alternative landfill cover demonstrations. Environmental Geotechnical Report No. 97-1. Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Wisconsin, USA
2. Corser, P. and Cranston, M. (1991) Observations on the performance of composite clay liners and covers, in Proceedings of Geosynthetics Desiccation and Performance, Vancouver Geotechnical Society, Vancouver, British Columbia, Canada, p. 16