Wikidata entity: Q4492214
| P1343 | described by source | ... | Q106913582 (Principles governing photometry (2nd edition)) | Principles governing photometry (2nd edition) |
| P1889 | different from | ... | Q106913722 (radiometric quantity) | radiometric quantity |
| P1889 | different from | ... | Q106947489 (photon quantity) | photon quantity |
| P1269 | facet of | ... | Q103793222 (photometric quantities and units) | photometric quantities and units |
| P31 | instance of | ... | Q71758646 (general quantity) | general quantity |
| P2579 | studied by | ... | Q625648 (photometry) | photometry |
| P279 | subclass of | ... | Q107715 (physical quantity) | physical quantity |
| P2671 | Google Knowledge Graph ID | /g/1220frj8 |
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