Supersymmetry approach to the Dirac equation in the presence of the deformed Woods-Saxon potential R. Mokhtari, R. Hoseini Sani and A. Chenaghlou Eur. Phys. J. Plus, 134 9 (2019) 446 Published online: 16 September 2019 DOI: 10.1140/epjp/i2019-12818-4