Partridge-Telenko, D. E., J. B. Unruh, B. J. Brecke, and R. Leon. “Crabgrass Biology and Management in Turf: ENH1134/EP395, 7/2009”. EDIS, vol. 2009, no. 6, July 2009, doi:10.32473/edis-ep395-2009.