Algebraic solution and coherent states for the Dirac oscillator interacting with a topological defect M. Salazar-Ramírez, D. Ojeda-Guillén, A. Morales-González and V. H. García-Ortega Eur. Phys. J. Plus, 134 1 (2019) 8 Published online: 08 January 2019 DOI: 10.1140/epjp/i2019-12381-0