Challenges and possibilities of enforcing the rule of Law within the EU constitutional edifice - the need for increased role of court of justice, EU charter and diagonality in perceptionHamulak, Ondrej; Circolo, AndreaThe EU in the 21st century : challenges and opportunities for the European integration process2020 / p. 155-169 https://doi.org/10.1007/978-3-030-38399-2_10

EU in twenty-first century, does crisis mean opportunity?Ramiro Troitino, David; Kerikmäe, Tanel; Martin de la Guardia, Ricardo; Perez Sanchez, Guillermo A.The EU in the 21st century : challenges and opportunities for the European integration process2020 / p. 3-9 https://doi.org/10.1007/978-3-030-38399-2_1

European Union and Great Britain: after Brexit, who wins the break-up?Laitinen, Essi; Ramiro Troitino, David; Kerikmäe, TanelThe EU in the 21st century : challenges and opportunities for the European integration process2020 / p. 103-116 https://doi.org/10.1007/978-3-030-38399-2_7

Foreign affairs of the European Union: how to become an independent and dominant power in the international arenaRamiro Troitino, David; Kerikmäe, Tanel; Chochia, ArchilThe EU in the 21st century : challenges and opportunities for the European integration process2020 / p. 209-230 https://doi.org/10.1007/978-3-030-38399-2_12

Internal security: terrorism and criminality fostering integration in the EUOliievska, Nataliia; Ramiro Troitino, David; Kerikmäe, TanelThe EU in the 21st century : challenges and opportunities for the European integration process2020 / p. 85-100 https://doi.org/10.1007/978-3-030-38399-2_6

Migration to Europe: a threat or an opportunity?Sansus, Lara; Ramiro Troitino, David; Kerikmäe, TanelThe EU in the 21st century : challenges and opportunities for the European integration process2020 / p. 59-84 https://doi.org/10.1007/978-3-030-38399-2_5

The EU’s common security and defence policy in facing new security challenges and its impact on cyber defenceKasper, Agnes; Mölder, HolgerThe EU in the 21st century : challenges and opportunities for the European integration process2020 / p. 271-294 https://doi.org/10.1007/978-3-030-38399-2_15

The NATO-Russia council - an assessment of the NRC prior to the Ukraine crisisAntonov, Aleksander; Hoffmann, ThomasThe EU in the 21st century : challenges and opportunities for the European integration process2020 / p. 231-245 https://doi.org/10.1007/978-3-030-38399-2_13

Trustworthy AI as a future driver for competitiveness and social change in the EUAntonov, Aleksander; Kerikmäe, TanelThe EU in the 21st century : challenges and opportunities for the European integration process2020 / p. 135-154 https://doi.org/10.1007/978-3-030-38399-2_9