@article{68416,
  author = {Walter Miller and Franklin Guenther},
  title = {The Certification of a Nominal 20 m¿ mol/mol H2S/N-2 Standard Reference Material Using Two Independent Methods},
  year = {2007},
  number = {387},
  month = {2007-10-01},
  publisher = {Analytical and Bioanalytical Chemistry},
  language = {en},
}