ieeexplore.ieee.org
ieeexplore.ieee.org
people.ac.upc.edu
researchgate.net
semanticscholar.org
people.ac.upc.edu
metro-haul.eu
upcommons.upc.edu
opg.optica.org
Optica Publishing Group
https://opg.optica.org › jlt › abstract.cfm?uri=jlt-36-1-135
link.springer.com
bscw.metro-haul.eu
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