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D. O. Wolfenbarger, Dispersion of Small Organisms. Distance Dispersion Rates of Bacteria, Spores, Seeds, Pollen, and Insects; Incidence Rates of Diseases and Injuries, The American Midland Naturalist, Vol. 35, No. 1 (Jan., 1946), pp. 1-152
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D. O. Wolfenbarger (1946) studied this question.
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