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.
APA4ort.xyz Knowledge Graph. (2026). Comparison of automatic methods to detect sunspots in the Coimbra Observatory spectroheliograms. Retrieved May 24, 2026, from https://4ort.xyz/entity/comparison-of-automatic-methods-to-detect-sunspots-in-the-coimbra-observatory-spectroheliograms
MLA“Comparison of automatic methods to detect sunspots in the Coimbra Observatory spectroheliograms.” 4ort.xyz Knowledge Graph, 4ort.xyz, 24 May. 2026, https://4ort.xyz/entity/comparison-of-automatic-methods-to-detect-sunspots-in-the-coimbra-observatory-spectroheliograms.
BibTeX@misc{4ortxyz_comparison-of-automatic-methods-to-detect-sunspots-in-the-coimbra-observatory-spectroheliograms_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Comparison of automatic methods to detect sunspots in the Coimbra Observatory spectroheliograms}}, year = {2026}, url = {https://4ort.xyz/entity/comparison-of-automatic-methods-to-detect-sunspots-in-the-coimbra-observatory-spectroheliograms}, note = {Accessed: 2026-05-24}}
LLM promptAccording to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Comparison of automatic methods to detect sunspots in the Coimbra Observatory spectroheliograms — https://4ort.xyz/entity/comparison-of-automatic-methods-to-detect-sunspots-in-the-coimbra-observatory-spectroheliograms (retrieved 2026-05-24)
