@article{Rosero-Bixby2018,
author = {Rosero-Bixby, L.},
title= {High life expectancy and reversed socioeconomic gradients of elderly people in Mexico and Costa Rica},
year = {2018},
doi = {10.4054/DemRes.2018.38.3},
volume = {38},
number = {3},
pages = {95--108},
}