@article{Black2011a,
author = {Black, R. and Adger, W.N. and Arnell, N.W. and Dercon, S. and Geddes, A. and Thomas, D.},
title= {The effect of environmental change on human migration},
year = {2011a},
doi = {10.1016/j.gloenvcha.2011.10.001},
volume = {21},
number = {S1},
pages = {S3--S11},
}