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J. M.  Elliott and Bagenal, T. B., ?The effects of electrofishing on the invertebrates of a Lake District stream?, Oecologia, vol. 9, no. 1, pp. 1-11, 1972.

J. M.  Elliott, ?The distances travelled by drifting invertebrates in a Lake District stream?, Oecologia, vol. 6, no. 4, pp. 350-379, 1971.