@article{De Santis2014,
author = {De Santis, G. and Drefahl, S. and Vignoli, D.},
title= {A period total fertility rate with covariates for short-panel data},
year = {2014},
doi = {10.3917/popu.1403.0463},
volume = {69},
number = {3},
pages = {419--432},
}