@inbook{Brüderl2015,
author = {Brüderl, J. and Ludwig, V.},
title= {Fixed-effects panel regression},
year = {2015},
doi = {10.4135/9781446288146.n15},
editor = {Best, H.},
editor = {Wolf, C.},
address = {Los Angeles},
publisher = {Sage Reference},
pages = {327--357},
}