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J. Antonovics, N. L. Fowler, Analysis of Frequency and Density Effects on Growth in Mixtures of Salvia Splendens and Linum Grandiflorum Using Hexagonal Fan Designs, Journal of Ecology, Vol. 73, No. 1 (Mar., 1985), pp. 219-234
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Antonovics et al. (1985) studied this question.
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