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Heart-Beats as a Measure of Biotic Time in the Life of Daphniidae

M. P. D. Meijering and J. B. Redfern
The American Naturalist
Vol. 96, No. 886 (Jan. - Feb., 1962), pp. 61-64
Stable URL: http://www.jstor.org/stable/2458539
Page Count: 4
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