Using Avida to Test the Effects of Natural Selection on Phylogenetic Reconstruction Methods. - George I. Hagstrom; Dehua H. Hang; Charles Ofria; Eric Torng (Artif. Life, 2004)

Bounds on Surface Stress-Driven Shear Flow. - George I. Hagstrom; Charles R. Doering (J. Nonlinear Sci., 2014)