@article{Lechner2016,
author = {Lechner, M. and Rodríguez-Planas, N. and Ferníndez Kranz, D.},
title= {Difference-in-difference estimation by FE and OLS when there is panel non-response},
year = {2016},
doi = {10.1080/02664763.2015.1126240},
volume = {43},
number = {11},
pages = {2044--2052},
}