Science · Digital Libraries & Metadata Standard
Digital Object Identifiers (DOIs) are primarily used to uniquely identify which of the following objects?
- 1Physical library shelving locations
- 2Only scientific equipment used in research labs
- 3Physical books and printed journal issues only
- 4Digital content items such as texts, images, and audio-visual materials✓
Correct answer
Digital content items such as texts, images, and audio-visual materials
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