Bethany J. Galster Galster, B. J., Wuellner, M. R., & Graeb, B. D. S. (2012). Walleye Sander vitreus and smallmouth bass Micropterus dolomieu interactions: an historic stable-isotope analysis approach. Journal of Fish Biology, 81(1), 135–147. Wuellner, M. R., Graeb, B. D. S., Willis, D. W., Galster, B. J., Selch, T. M., & Chipps, S. R. (2011). Competitive interactions between walleye (Sander vitreus) and smallmouth bass (Micropterus dolomieu) under various controlled conditions. Journal of Freshwater Ecology, 26(3), 299–314.