J. M. Mangold, Poulsen, C. L., and Carpinelli, M. F.,
“Revegetating Russian Knapweed (Acroptilon Repens) Infestations Using Morphologically Diverse Species and Seedbed Preparation”,
Rangeland Ecology & Management, vol. 60, no. 4, pp. 378 - 385, 2007.