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Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Ervín. Retrieved October 29, 2026, from https://4ort.xyz/entity/q61045556
MLA “Ervín.” 4ort.xyz Knowledge Graph, 4ort.xyz, 29 Oct. 2026, https://4ort.xyz/entity/q61045556.
BibTeX @misc{4ortxyz_q61045556_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Ervín}}, year = {2026}, url = {https://4ort.xyz/entity/q61045556}, note = {Accessed: 2026-10-29}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Ervín — https://4ort.xyz/entity/q61045556 (retrieved 2026-10-29)

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