1- Amini R. A., and Fateh E. 2011. Effect of Redroot Pigweed (Amaranthus retroflexus) on Growth Indices and Yield of Red Kidney Bean (Phaseolus vulgaris) Cultivars. Journal of Agricultural and Sustainable, (University of Tabriz) WinterR, Volume 20/2, Number 4; Page(s).
2- Auskalnys A., and Kadzys A. 2006. Effect of timing and dosage in herbicide application on weed biomass in spring wheat. Agronomy Research. (Special issue): Page, 133-136.
3- Bastiaans L., Kropff M. j., Goudriaan J., and Van Laar H. H. 2000. Design of weed management systems with a reduced reliance on herbicides poses new challenges and prerequisites for modeling crop±weed interactions. Field Crop Research, 67: 161-179.
4- Blackshaw R. E., and Esau R. 1991. Control of annual broadleaf weeds in pinto beans (Phaseolus vulgaris). Weed Technology, 5: 532–538.
5- Blackshaw R. E., Louis J., Molnar H., Henning M., Saindon G., and Xiangju L. 2000. Integration of cropping practices and herbicides improves weed management in dry bean (Phaseolus vulgaris). Weed Technology, 14: 327-336.
6- Blackshaw R. E., O’Donovan J. T., Harker K. N., Clayton G. W., and Stougaard R. N. 2006. Reduced herbicide doses in field crops: a review. Weed Biology and Management, 6: 10–17.
7- Gibson K. D., Johnson W. G., and Hillger D. E. 2005. Farmer perceptions of problematic corn and soybean weeds in Indiana. Weed Technology, 19: 1065–1070.
8- Kim D. S., Brain P., Marshall E. J. P., and Caseley J. C. 2000. Modelling herbicide dose and weed density effects on crop: weed competition, Weed Research.
9- Mulugeta D., and Stoltenberg D. E. 1998. Influence of cohorts on Chenopodium album demography. Weed Science, 46: 65-70.
10- Oveisi M., Rahimian Mashhadi H., Yousefi A. R., Alizade H., Baghestani M. A., and Gonzalez-Andujar J. L. 2013. Predicting maize yield in a multiple species competition with X. strumarium and A. retroflexus: Comparing of approaches to modeling herbicide performance. Volume, 45: 15-21.
11- Quakenbush L. S., and Andersen R. N. 1984. Distribution and biology of two nightshades (Solanum spp.) in Minnesota. Weed Science, 32: 529-533.
12- Ritz C., and Streibig J. C. 2005. Bioassay Analysis using R. J. Statist. Software, Vol 12, Issue 5.
13- Swanton C. J., and Weise S. F. 1991. Integrated weed management. Ontario Crop Producer-Special Issue, P. 21.
14- Wiley R.W. 1979. Intercropping: Its importance and research needs. Part 1. Competition and yield advantage. Field Crop Abstract, 32: 1-410.
15- Zhang Z.H., Weaver S.E., and Hamill A.S. 2000. Risks and reliability of using herbicides at below-labelled rates. Weed Technol, 14: 106–115.