TY - JOUR AU - Shaday Guerrero-Flores AU - Osvaldo Osuna AU - José Geiser Villavicencio Pulido TI - Periodic orbits in a seasonal SIRS model with both incidence and treatment generalized rates JO - Revista colombiana de matematicas PY - 2023 SP - 19 EP - 36 VL - 57 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RCM_2023_57_1_a1/ ID - RCM_2023_57_1_a1 ER -