Official Journal of the European Union - EU Withdrawal Agreement 31.01.2020
Official Journal of the European Union - DIRECTIVE 2004/38/EC (Freedom of movement)
Republic of Poland - Act on entry of Foreigners 2006
European Commision - 'Guidence note on EU Withdrawal Agreement'
European Commision - ‘Residence rights in EU countries under the Citizens' Rights part of the Withdrawal Agreement - overview of implementation’
European Commision - 'Rules for UK nationals when entering or leaving the Schengen area'
European Commision - 'UK nationals and multiple immigration statuses'
European Commision - 'Enforcement of individual rights of United Kingdom nationals under the Withdrawal Agreement'
UK Government - 'European Union Committee Brexit: acquired rights'
European Court of Justice - Notable cases
C-413/99 [5 July 2001] - Residence can not be refused on the ground a person has no sickness insurance (Para 118)
C-168/19 and C-169/19 [30 April 2020] - A person who exercised their right conferred by Article 21 TFEU, may rely on Article 18 TFEU (non-discrimination) in any situation in member state (Para 13)
C-247/20 [10 March 2022] - A person who has right to aquire permanent residency under Art 16(1), Directive 2004/38/EC, is not required to have sickness insurance, to continue residency (Paras 53-56)