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Completeness and overlap in open access systems: Search engines, aggregate institutional repositories and physics-related open sources
Tsay My,
Wu Tl,
Tseng Ll
(2017)
Completeness and overlap in open access systems: Search engines, aggregate institutional repositories and physics-related open sources.
PLOS ONE 12(12): e0189751.
https://doi.org/10.1371/journal.pone.0189751