@techreport{Spaan2006,
author = {Spaan, E. and van Moppes, D.},
title= {African exodus? Trends and patterns of international migration in sub-Saharan Africa},
year = {2006},
publisher = {Research Group Migration and Development, Radboud University},
address = {Nijemegen},
number = {(Working papers Migration and Development series; Report No. 4)},
}