@article{lineweaver_egan_2007, 
  title={The Cosmic Coincidence as a Temporal Selection Effect Produced by the Age Distribution of Terrestrial Planets in the Universe}, 
  volume={671}, 
  DOI={10.1086/522197}, 
  publisher={IOP Publishing}, 
  author={Lineweaver and Egan}, 
  year={2007}, 
  month={Dec}
  }