00323nas a2200133   4500000000100000000000100001008004100002100002100043700001600064700002000080245006700100300001600167490000600183       2012                            d1 aTomáš Schóber1 aIvan Koblen1 aStanislav Szabo00aPresent and potential security threats posed to civil aviation  a169 – 1750 v4