Universität zu Köln

Kennedy, Ricardo (2014). Homotopy Theory of Topological Insulators. PhD thesis, Universität zu Köln.

Kennedy, Ricardo (2016). Topological Hopf-Chern insulators and the Hopf superconductor. Phys. Rev. B, 94 (3). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

Kennedy, Ricardo and Guggenheim, Charles (2015). Homotopy theory of strong and weak topological insulators. Phys. Rev. B, 91 (24). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969