1. Parker G. J., The Effect of foot piece Design on the performance of small air lift pump, int. J. heat & fluid flow vol. 2 no. 4.
2. Chisti V., G. Trystam, 1992, « Assure Bioreactor Sterility », Chem.Eng.Prog.,September 1992, pp. 80-85.
3. Reley D.J., Parker G.J. « Flowing geothermal wells: Cerro Priet wells M.91 and Krafla well KJ-9.1: Computer analysis compared with experimental data », Int. Conf. on Geothermal Energy, Florence Italy, May 1982, pp. 187-196.
4. Mero J.L., »Seafloor Minerals: A Chemical Engineering Challenge », Chem. eng. Prog., July 1 1968, pp.73-80.
5. "An analytical and experimental study of airlift pump performance";Stenning;J.Eng.Power,1968