@article{Zajacova2009,
author = {Zajacova, A. and Goldman, N. and Rodríguez, G.},
title= {Unobserved heterogeneity can confound the effect of education on mortality},
year = {2009},
doi = {10.1080/08898480902790528},
volume = {16},
number = {2},
pages = {153--173},
}