[1]
González-Guzmán, J. 2018. Global stability results on an epidemiological model with a core group (a note on the paper "local stability results on a model for typhoid fever with a core group"). Proyecciones (Antofagasta, On line). 13, 1 (Apr. 2018), 09-17. DOI:https://doi.org/10.22199/S07160917.1994.0001.00003.