sciencedirect.com
sciencedirect.com
researchgate.net
semanticscholar.org
mendeley.com
apps.dtic.mil
isca-archive.org
isca-archive.org
https://www.isca-archive.org › sltu_2012 › vu12_sltu.pdf
infona.pl
archive.org
fit.vut.cz
apps.dtic.mil
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