UNHCR Evaluation and Policy Analysis Unit, New Issues in Refugee Research, &quot; Deportation and the liberal state: the forcible return of asylum seekers and unlawful migrants in Canada, Germany and the United Kingdom &quot; , by Gibney, Matthew J. and Hansen, Randall, Working Paper No. 77, 2003.
难民署评价和政策分析股，难民研究方面的新问题， &quot; 递解出境和自由主义国家：加拿大、德国和联合王国对庇护申请人及非法移民的强迫返回 &quot; ，Gibney，Matthew J.和Hansen，Randall，第77号工作文件，2003年。