@article{article, title  = {{Searches for Gravitational Waves from Known Pulsars at Two Harmonics in the Second and Third LIGO-Virgo Observing Runs}},

 url = {{}},

 year = {{2021}},

 month = {{11}},

 author = {{The LIGO Scientific Collaboration and the Virgo Collaboration and the KAGRA Collaboration and Abbott R and Abe H and Acernese F and Ackley K and Adhikari N and Adhikari RX and Adkins VK and Adya VB et al}},

 doi = {{10.48550/arxiv.2111.13106}},

 note = {{Accessed on 2025/10/08}}}