Stepien, C.A., J.E. Brown, M.E. Neilson & M.A. Tumeo. 2005. Genetic diversity of invasive species in the Great Lakes versus their Eurasian source populations: insights for risk analysis. Risk Analysis 25(4): 1043-1060. https://doi.org/10.1111/j.1539-6924.2005.00655.x.