Eisenman , G., Hägglund , J., Sandblom , J., & Enos , B. (1980). The Current-voltage Behavior of Ion Channels: Important Features of the Energy Profile of the Gramicidin Channel Deduced from the Conductance-voltage Characteristic in the Limit of Low Ion Concentration. Upsala Journal of Medical Sciences, 85(3), 247-257. https://doi.org/10.3109/03009738009179195