2018 : Mathematical model of fish, birds and tourists in wetlands: the impact of periodic fluctuations on the coexistence of species A. Afr. Mat. (2018). https://doi.org/10.1007/s13370-018-0583-3, (with O. Diop)
2016 : Mathematical model of the dynamics of fish, waterbirds and tourists in the Djoudj national park, Senegal, Acta Biotheoretica, DOI 10.1007/s10441-016-9290-3 (with O. Diop).
2015 : Positive periodic solution of an augmented predator-prey model with seasonal harvest of prey and migration of predator, J. Appl. Math. Comput. DOI 10.1007/s12190-015-0948-9 (avec O. Diop, A. M. Moussaoui)