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Three main routes into Europe.. Source: Authors' own elaboration based on USGS National Map Viewer.
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The three routes are presented in Fig 2.
Illegal border crossings detected by Frontex (Syrians only) of three main routes.. Central Mediterranean Route (grey), Eastern Mediterranean Route by sea (orange) and Eastern Mediterranean Route by land (blue). Source:.
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Fig 3. For example, one can see that in 2014, 50% of the Syrians took the CMR.
A refugee route as a k+1-stage compound option.. Source: Author's own elaboration.
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Fig 4 represents a refugee route as a (k+1)-stage compound option.
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