@article{MMNP_2014_9_4_a3,
     author = {R. Boucekkine and B. Martinez and J.R. Ruiz-Tamarit},
     title = {Optimal {Sustainable} {Policies} {Under} {Pollution} {Ceiling:} the {Demographic} {Side}},
     journal = {Mathematical modelling of natural phenomena},
     pages = {38--64},
     publisher = {mathdoc},
     volume = {9},
     number = {4},
     year = {2014},
     doi = {10.1051/mmnp/20149404},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20149404/}
}