@article{Lutz2008,
author = {Lutz, W. and Crespo-Cuaresma, J. and Sanderson, W.C.},
title= {The demography of educational attainment and economic growth},
year = {2008},
doi = {10.1126/science.1151753},
journal = {Science },
volume = {319},
number = {5866},
pages = {1047--1048},
}