@article{OuedraogoRungeEisenbergetal.2015,
  author    = {Issa Ouedraogo and J{\"u}rgen Runge and Joachim Eisenberg and Jennie Barron and S{\´e}raphine Sawadogo-Kabor{\´e}},
  title     = {The re-greening of the Sahel : natural cyclicity or human-induced change?},
  journal   = {Land},
  volume    = {3},
  number    = {3},
  pages     = {1075 -- 1090},
  doi       = {10.3390/land3031075},
  year      = {2015},
}