@article{Lutz2011,
author = {Lutz, W. and Kc, S.},
title= {Global human capital: Integrating education and population},
year = {2011},
doi = {10.1126/science.1206964},
URL = {https://doi.org/10.1126/science.1206964},
volume = {333},
number = {6042},
pages = {587--592},
}