Wikidata entity: Q905233
| P1343 | described by source | ... | Q66386517 (Small Soviet Encyclopedia) | Small Soviet Encyclopedia |
| P31 | instance of | ... | Q4162444 (branch of physics) | branch of physics |
| P279 | subclass of | ... | Q14620 (optics) | optics |
| P910 | topic's main category | ... | Q7461034 (Category:Electron optics) | Category:Electron optics |
| P910 | topic's main category | ... | Q32074633 (???) | ??? |
| P1417 | Encyclopædia Britannica Online ID | science/electron-optics |
| P3219 | Encyclopædia Universalis ID | optique-optique-electronique |
| P646 | Freebase ID | /m/06w_hn |
| P2671 | Google Knowledge Graph ID | /g/122sg180 |
| P4342 | Great Norwegian Encyclopedia ID | elektronoptikk |
| P2924 | Great Russian Encyclopedia Online ID (old version) | 4929376 |
| P3827 | JSTOR topic ID (archived) | electron-optics |
| P6366 | Microsoft Academic ID (discontinued) | 31885709 |
| P691 | NL CR AUT ID | ph170660 |
| P10283 | OpenAlex ID | C2983270210 |
| P10283 | OpenAlex ID | C31885709 |
| P3417 | Quora topic ID | Electron-Optics |
| P2347 | YSO ID | 14981 |
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