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Separatists or Russian troops and local collaborators? Russian aggression in Ukraine : the problem of definitionsTsybulenko, Evhen; Francis, J'Moul A.The use of force against Ukraine and international law : jus ad bellum, jus in bello, jus post bellum2018 / p. 123-144 https://doi.org/10.1007/978-94-6265-222-4_6

Violations of freedom of expression and freedom of religion by the Russian Federation as the occupying power in CrimeaTsybulenko, Evhen; Platonova, AnastassiyaBaltic journal of European studies2019 / p. 134–147 https://doi.org/10.1515/bjes-2019-0026 Journal metrics at Scopus Article at Scopus Article at WOS