1. The expanding roster of commerical reverse osmosis membranes;Petersen,1986
2. Osmosis membranes: construction and operational characteristics of RO membranes with emphasis of the Film Tec FT-30 membrane;Frank,1988
3. pretreatment calculations for RO;Barraqué,1985
4. Spiral-wound poly (ether/amide) thin-film composite membrane systems
5. J.E. Cadoote, US Patent 4.277.344, July 7, 1981.