1. Bærentsen, H.J., Zeuthen, T. 1981. Evidence for 3∶2 coupling ratio of the Na−K pump in the serosal cell membrane ofNecturus gallbladder epithelial cells.J. Physiol. (London) (in press)
2. Boulpaep, E.L., Sackin, H. 1980. Electrical analysis of intraepithelial barriers.In: Current Topics in Membranes and Transport. E.L. Boulpaep, editor. pp. 169–196. Academic Press, London
3. Clausen, C., Lewis, S.A., Diamond, J.M. 1979. Impedance analysis of a tight epithelium using a distributed resistance model.Biophys. J. 26:291–317
4. Ellory, J.C., Ramos, M., Zeuthen, T. 1978. Cl−-accumulation in plaice intestinal epithelium.J. Physiol. (London) 287:12–13
5. Frömter, E. 1972. The route of passive ion movement through the epithelium ofNecturus gall-bladder.J. Membrane Biol. 8:259–301