@article{barrow_magueijo_sandvik_2002, 
  title={Variations of alpha in space and time}, 
  volume={66}, 
  DOI={10.1103/physrevd.66.043515}, 
  publisher={American Physical Society (APS)}, 
  author={Barrow and Magueijo and Sandvik}, 
  year={2002}, 
  month={Aug}
  }