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[[2] https://www.state.gov/j/crt/2015/257526.htm [06.03.2017];]Search in Google Scholar
[[3] Ibidem;]Search in Google Scholar
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[[6] https://www.state.gov/j/crt/2015/257526.htm [06.03.2017];]Search in Google Scholar
[[7] M. Tomczak, Ewolucja metod terrorystycznych (Evolution of Terrorist Methods) - http://studiastrategiczne.amu.edu.pl/wp-content/uploads/2010/10/17_tomczak.pdf [17.03.2017].]Search in Google Scholar