1. Allmendinger, P., Chilla, T., Sielker, F., ‘Europeanizing territoriality – towards soft spaces?’, Environment and Planning A, no. 46 (11), 2014.
2. Agreement between the Government of the Republic of Poland and the Cabinet of Ministers of Ukraine on rules on local border traffic, signed in Kiev on 28 March 2008 [Umowa między Rządem Rzeczypospolitej Polskiej a Gabinetem Ministrów Ukrainy o zasadach małego ruchu granicznego, podpisana w Kijowie dnia 28 marca 2008 r., Dziennik Ustaw 2009.103.858, version from 22 January 2016].
3. Cesarz, M., ‘The evolution of Polish Visa Policy after entering the EU and the Schengen Area’, in: How Borderless is Europe? Multi-disciplinary approach to European Studies, ed. I. Tarrosy, Pecs: Publikon, 2015.
4. Commission Staff Working Paper, Developing the Acquis on ‘Local Border Traffic’, Brussels, 9 September 2002 SEC(2002) 947, https://www.eumonitor.nl/9353000/1/j9vvik7m1c3gyxp/vi7jgstgtftw#p1.
5. Convention implementing the Schengen Agreement of 14 June 1985 between the Governments of the States of the Benelux Economic Union, the Federal Republic of Germany and the French Republic on the gradual abolition of checks at their common borders, OJ L 239, 22 September 2000.