@article{blender_1960, 
  title={II. Measurement of weak magnetic fields by optical pumping methods}, 
  DOI={10.5169/seals-738636}, 
  publisher={Société de Physique et d'Histoire Naturelle de Genève}, 
  author={Blender, P.L.}, 
  year={1960}, 
  month={Sep}
  }