@misc{HummelLiehr2015,
  author    = {Diana Hummel and Stefan Liehr},
  title     = {Migration in the West African Sahel - more than a response to climate change},
  booktitle = {ISOE Policy Brief Nr. 2},
  issn      = {2365-1148},
  url       = {http://www.isoe.de/fileadmin/redaktion/Downloads/Bevoelkerung/policy-brief-isoe-2015-2.pdf},
  institution = {Institut f{\"u}r sozial-{\"o}kologische Forschung (ISOE)},
  series    = {ISOE Policy Brief},
  number    = {2},
  type      = {workingpaper},
  pages     = {1 -- 5},
  year        = {2015},
}