@article{Lutz2010,
author = {Lutz, W. and Kc, S.},
title= {Dimensions of global population projections: What do we know about future population trends and structures?},
year = {2010},
doi = {10.1098/rstb.2010.0133},
volume = {365},
number = {1554},
pages = {2779--2791},
}