1. B. A. Auld, and C. A. Tisdell .1988 .Influence of spatial distribution on weeds on crop yield loss., Plant Protection Quarterly,3:81 -81 .
2. The Effect of Weed Distribution on Predictions of Yield Loss
3. J. D., Jr. Byrd, and H. D. Coble .1991 .Interference of common cocklebur (Xanthium strumarium) and cotton (Gossypium hirsutum)., Weed Technology,5:270 -278 .
4. J. Cardina, D. H. Sparrow, and E. L. McCoy .1995 .Analysis of spatial distribution of common lambsquarters (Chenopodium album) in no-till soybean (Glycine max)., Weed Science,43:258 -268 .
5. Estimating Taylor's power law parameters for weeds and the effect of spatial scale