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). Surface astigmatism correction using segmented freeform surfaces for a progressive addition lens. Retrieved May 24, 2026, from https://4ort.xyz/entity/surface-astigmatism-correction-using-segmented-freeform-surfaces-for-a-progressive-addition-lens
MLA“Surface astigmatism correction using segmented freeform surfaces for a progressive addition lens.” 4ort.xyz Knowledge Graph, 4ort.xyz, 24 May. 2026, https://4ort.xyz/entity/surface-astigmatism-correction-using-segmented-freeform-surfaces-for-a-progressive-addition-lens.
BibTeX@misc{4ortxyz_surface-astigmatism-correction-using-segmented-freeform-surfaces-for-a-progressive-addition-lens_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Surface astigmatism correction using segmented freeform surfaces for a progressive addition lens}}, year = {2026}, url = {https://4ort.xyz/entity/surface-astigmatism-correction-using-segmented-freeform-surfaces-for-a-progressive-addition-lens}, note = {Accessed: 2026-05-24}}
LLM promptAccording to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Surface astigmatism correction using segmented freeform surfaces for a progressive addition lens — https://4ort.xyz/entity/surface-astigmatism-correction-using-segmented-freeform-surfaces-for-a-progressive-addition-lens (retrieved 2026-05-24)