@article{article, title = {{Searches for gravitational waves from known pulsars at two harmonics in the second and third LIGO-Virgo observing runs}}, publisher = {{American Astronomical Society}}, url = {{}}, year = {{2022}}, month = {{5}}, author = {{Abbott R and Abe H and Acernese F and Ackley K and Adhikari N and Adhikari RX and Adkins VK and Adya VB and Affeldt C and Agarwal D and Agathos M et al}}, doi = {{10.3847/1538-4357/ac6acf}}, volume = {{935}}, journal = {{The Astrophysical Journal}}, issue = {{1}}, note = {{Accessed on 2024/12/23}}}