Beck, Anatole, ed. (1973), "Citation read to the Faculty of Graduate School of Yale University on the occasion of Professor Hedlund's retirement", Proceedings of the Conference on Topological Dynamics held at Yale University on August 23, 1972, in honor of Professor Gustav Arnold Hedlund on the occasion of his retirement, Lecture Notes in Mathematics, Vol. 318, Berlin: Springer-Verlag, p. viii+285, MR0370654.
Beck, Anatole, ed. (1973), Proceedings of the Conference on Topological Dynamics held at Yale University on August 23, 1972, in honor of Professor Gustav Arnold Hedlund on the occasion of his retirement, Lecture Notes in Mathematics, Vol. 318, vol. 318, Berlin: Springer-Verlag, doi:10.1007/BFb0061716, ISBN978-3-540-06187-8, MR0370654.
Hedlund, G. A. (1969), "Endomorphisms and Automorphisms of the Shift Dynamical Systems", Mathematical Systems Theory, 3 (4): 320–375, doi:10.1007/BF01691062, S2CID21803927.
Beck, Anatole, ed. (1973), Proceedings of the Conference on Topological Dynamics held at Yale University on August 23, 1972, in honor of Professor Gustav Arnold Hedlund on the occasion of his retirement, Lecture Notes in Mathematics, Vol. 318, vol. 318, Berlin: Springer-Verlag, doi:10.1007/BFb0061716, ISBN978-3-540-06187-8, MR0370654.
Hedlund, G. A. (1969), "Endomorphisms and Automorphisms of the Shift Dynamical Systems", Mathematical Systems Theory, 3 (4): 320–375, doi:10.1007/BF01691062, S2CID21803927.
