secondary source in a sentence

Examples

1. Its existence is confirmed by secondary sources, such as this:
2. Try to stick to the facts, and cite secondary sources.
3. While WP can use tertiary sources, secondary sources are preferred.
4. That said, articles should be based primarily on secondary sources.
5. In general, Wikipedia articles should rely on reliable secondary sources.
6. Furthermore, the article makes use of no reliable secondary sources.
7. If you can find secondary sources, you should add them.
8. Autobiographies are not secondary sources, not NPOV and notoriously unreliable.
9. Many interviews come from secondary sources, the children, widows and mistresses of the now-deceased.
10. As I have already explained, I provided 5 secondary sources.