Ponte Bejarano, J.L., Ponte Bejarano, J.C., Rodríguez Carranza, A. and Aragones Salazar, N.O. 2021. Application of the principle of the Pontryagin maximum in the solution of a problem of minimum time. Selecciones Matemáticas. 8, 02 (Dec. 2021), 333-347. DOI:https://doi.org/10.17268/sel.mat.2021.02.10.