@misc{indiciae329185150dbc,
  title = {Zero Secular Torque on Asteroids from Impinging Solar Photons in the YORP Effect: A Simple Proof},
  author = {Rubincam, David Perry and Paddack, Stephen J.},
  year = {2010},
  url = {https://ntrs.nasa.gov/citations/20110013478},
  note = {Source identifier: 20110013478}
}