1. Evolution of composite reverse osmosis Membranes;Cadotte,1985
2. J.E. Cadotte, U.S. Patent 4,277,344, 1981.
3. S.A. Sundet, U.S. Patent 4,643,829, 1987.
4. Aromatic/cycloaliphatic polyamide membrane;Sundet;Desalination,1987
5. J.W. Richter and H.H. Hoehn, U.S. Patent 3,567,632, 1971.