@inbook{de Hart2006,
author = {de Hart, B. and van Oers, R},
title= {European trends in nationality law},
year = {2006},
editor = {Bauböck, R. },
editor = {Ersbøll, E.},
editor = {Groenendijk, K.},
editor = {Waldrauch, H.},
booktitle = {Acquisition and Loss of Nationality, Volume 1: Comparative Analyses },
address = {Amsterdam},
publisher = {Amsterdam University Press},
pages = {317 -- 357},
}