@misc{misc, title = {{Upper Limits on the Isotropic Gravitational-Wave Background from Advanced LIGO's and Advanced Virgo's Third Observing Run}}, url = {{}}, year = {{2021}}, month = {{1}}, author = {{The LIGO Scientific Collaboration and the Virgo Collaboration and the KAGRA Collaboration and Abbott R and Abbott TD and Abraham S and Acernese F and Ackley K and Adams A and Adams C and Adhikari RX et al}}, doi = {{10.48550/arxiv.2101.12130}}, note = {{Accessed on 2025/10/08}}}