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| VOGEL LIBRARY |
| PATS: Acronym for Evaluation indicators | |
| Purpose | Is the intent to INFORM or PERSUADE? |
| Authority | Scholar? Journalist? Experienced in the topic? Whatever it is, what does it mean in the context of history? Of a country? Of a time period? |
| Timeliness | Depends on your topic whether currency is important |
| Scope | Do you want something that covers the topic broadly, specifically, or in-depth? (e.g., respectively, encyclopedias, news or scholarly articles, and books) |
NASA. National Aeronautucs and Space Administration.
Physics.org. A guide to authoritative information on the web in Physics.
Science Research: A free, publicly available deep web search engine that uses advanced "federated search technology" to return high quality results by submitting your search query - in real-time - to other well respected search engines then collating, ranking and dropping duplicates of the results.
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