@Article{533810,
     author = "Juliusz Piwowarski, Andrzej Czop",
     title = "The Current Migration as a Factor of the Terrorist Threat in Europe and Poland",
     year =  2015,
     volume =  ,
     number =  4 (16),
     journal =  Security Dimensions. International & National Studies,
     pages =  s. 48-73,
    }