Kisel, V.V., Ovsiyuk, E.M., Ivashkevich, A.V. and Red’kov, V.M. 2019. Fradkin Equation for a Spin-3/2 Particle in the Presence of External Electromagnetic and Gravitational Fields. Ukrainian Journal of Physics. 64, 12 (Dec. 2019), 1112. DOI:https://doi.org/10.15407/ujpe64.12.1112.