@article{229966,
  author = {C O'Brien and D Burns and Ronaldo Minniti},
  title = {Key comparison BIPM.RI(I)-K3 of the air-kerma standards of the NIST, USA and the BIPM in medium-energy x- rays},
  year = {2017},
  number = {54},
  month = {2017-08-01},
  publisher = {Metrology},
  language = {en},
}