RT Journal Article SR Electronic(1) A1 Catchpole, Mike A1 Coulombier, Denis YR 2015 T1 Refugee crisis demands European Union-wide surveillance! JF Eurosurveillance VO 20 IS 45 SP 30063 OP DO https://doi.org/10.2807/1560-7917.ES.2015.20.45.30063 UL https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2015.20.45.30063