1. Almeida, F., C. Costa, A. Rodrigues, and G. Grevillot, ?Removal of Phenol From Wastewater by Recuperative Mode Parametric Pumping,? inPhysicochemical Methods for Water and Wastewater Treatment, L. Pawlowski, (Ed.), pp. 169?178 Elsevier Scientific. Publ. Comp. Amsterdam, 1982.
2. Bolto, B.A., ?Sirotherm Desalination-Ion Exchange with a Twist,?Chem. Tech., 303?307 (1975).
3. Butts, T.J., N.H. Sweed and A.A. Camero, ?Batch Fractionation of Ionic Mixtures by Parametric Pumping,?Ind. Eng. Chem. Fund.,12, 467?472 (1973).
4. Chen, H.T. and F.B. Hill, ?Characteristics of Batch, Semicontinuous and Continuous Equilibrium Parametric Pumps,?Sep. Science,6, 411?434 (1971).
5. Chen, H.T., J.L. Rak, J.D. Stokes, and F.B. Hill, ?Separation Continuous Parametric Pumping,?AIChE J.,18, 21, 356?361 (1972).