@inbook{Courgeau2006,
author = {Courgeau, D. and Lelievre, E.},
title= {Motivations for Migration},
year = {2006},
editor = {Caselli, G.},
editor = {Vallin, J.},
editor = {Wunsch, G.},
booktitle = {Demography: Analysis and synthesis},
address = {Burligton, San Diego, and London},
publisher = {Elsevier},
}