1. External assessments of Visegrad since its international recognition over the “migrant” crisis
:FAWN, Rick. External assessments of Visegrad since its international recognition over the “migrant” crisis. In International issues & Slovak foreign policy affairs. - Bratislava : Research Centre of the Slovak Foreign Policy Association, 2018. ISSN 1337-5482, 2018, vol. 27, no. 1-2, s. 63-79.