1. Leek, B.F.: Ph.D. Thesis (Edinburgh) (1967)
2. Leek, B.F.: J. Physiol. (London) 202, 585–609 (1969)
3. Leek, B.F. and Van Miert, A.S.J.P.A.M.: J. Physiol. (London) 215, 28–29P (1971)
4. Ruckebusch, Y.: J. Physiol. (London) 210, 857–882 (1970)
5. Gregory, P.C.: J. Physiol. (London) 328, 97–98P (1982)