1. Dual nationality and the Meaning of Citizenship;P Spiro;Emory Law Journal,1997
2. Rights of Expatriates, Multiple Citizens and Restricted Citizenship for Certain Nationals;H Waldrauch;Acquisition and Loss of Nationality. Policies and Trends in
3. Acquisition and Loss of Nationality|Volume 1: Comparative Analyses : Policies and Trends in 15 European Countries
4. Acquisition and Loss of Nationality, Policies and Trends in 15;K Hailbronner;European Countries,2006