Involutions on Homotopy Spheres. J.P. Alexander; G.C. Hamrick; J. Vick — 1974 Inventiones mathematicae
Cobordism of Manifolds with Odd Order Normal Bundle. J.P. Alexander; G.C. Hamrick; J. Vick — 1974 Inventiones mathematicae
Flat Riemannian Manifolds are Boundaries. G.C. Hamrick; David C. Royster — 1982 Inventiones mathematicae