Berry phases and zero-modes in toroidal topological insulatorJakson M. Fonseca, Vagson L. Carvalho-Santos, Winder A. Moura-Melo and Afranio R. PereiraEur. Phys. J. B, 89 6 (2016) 153DOI: https://doi.org/10.1140/epjb/e2016-70076-8