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). Oxygen excess ratio control of PEM fuel cell systems with prescribed regulation time. Retrieved May 24, 2026, from https://4ort.xyz/entity/oxygen-excess-ratio-control-of-pem-fuel-cell-systems-with-prescribed-regulation-time
MLA“Oxygen excess ratio control of PEM fuel cell systems with prescribed regulation time.” 4ort.xyz Knowledge Graph, 4ort.xyz, 24 May. 2026, https://4ort.xyz/entity/oxygen-excess-ratio-control-of-pem-fuel-cell-systems-with-prescribed-regulation-time.
BibTeX@misc{4ortxyz_oxygen-excess-ratio-control-of-pem-fuel-cell-systems-with-prescribed-regulation-time_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Oxygen excess ratio control of PEM fuel cell systems with prescribed regulation time}}, year = {2026}, url = {https://4ort.xyz/entity/oxygen-excess-ratio-control-of-pem-fuel-cell-systems-with-prescribed-regulation-time}, note = {Accessed: 2026-05-24}}
LLM promptAccording to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Oxygen excess ratio control of PEM fuel cell systems with prescribed regulation time — https://4ort.xyz/entity/oxygen-excess-ratio-control-of-pem-fuel-cell-systems-with-prescribed-regulation-time (retrieved 2026-05-24)
