Neutron waveguides with finite repulsive potential in clad I. Molina de la Peña, R. F. Alvarez-Estrada and M. L. Calvo Eur. Phys. J. Plus, 137 8 (2022) 987 Published online: 31 August 2022 DOI: 10.1140/epjp/s13360-022-03182-9