@book{schaefer_sullivan_1970, 
  title={NUCLEAR EMULSION RECORDINGS OF THE ASTRONAUTS' RADIATION EXPOSURE ON THE FIRST LUNAR LANDING MISSION APOLLO 9}, 
  DOI={10.21236/ad0711316}, 
  institution={Defense Technical Information Center}, 
  author={Schaefer and Sullivan}, 
  year={1970}, 
  month={Jun}
  }