@article{copi_krauss_2001, 
  title={Angular signatures for galactic halo weakly interacting massive particle scattering in direct detectors: Prospects and challenges}, 
  volume={63}, 
  DOI={10.1103/physrevd.63.043507}, 
  publisher={American Physical Society (APS)}, 
  author={Copi and Krauss}, 
  year={2001}, 
  month={Jan}
  }