1. Li, N. N. Separating Hydrocarbons with Liquid Membranes. US Pat. 3,410,794, 12 November 1968.
2. Facilitated transport through liquid membranes — an extended abstract
3. Extraction of Metal Ions by Liquid Membrane;Cahn,1981
4. Biochemical and Biomedical Separations Using Liquid Membranes;Frankenfeld,1978
5. Membranes which pump