1. A. Berti, C. Dunan, M. Sattin, G. Zanin, and P. Westra .1996 .A new approach to determine when to control weeds., Weed Sci, 44 :496 –503 .
2. C. C. Black, T. M. Chen, and R. H. Brown .1969 .Biochemical basis for plant competition., Weed Sci, 17 :338 –344 .
3. Misinterpretations of results in weed research through inappropriate use of statistics
4. R. Cousens, 1991 .Aspects of the design and interpretation of competition (interference) experiments., Weed Technol, 5 :664 –673 .
5. D. C. Dalley, J. J. Kells, and K. A. Renner .1999 .Weed interference in glyphosate resistant corn and soybean as influenced by time of weed removal and crop row spacing., Proc. N. Cent. Weed Sci. Soc, 54 :65 .