@inbook{May2017, author = {May, J.F. and Guengant, J.-P. and Barras, V.}, title= {Demographic challenges of the Sahel countries}, year = {2017}, doi = {10.1007/978-3-319-46889-1_11}, editor = {Groth, H.}, editor = {May, J.F. }, booktitle = {Africa’s population: In search of a demographic dividend}, address = {Cham}, publisher = {Springer}, pages = {165--177}, }