@article{137901,
  author = {Larry Lucas},
  title = {Massic Activity Ratios of the NBS/NIST Tritiated-Water Standards Issued Between 1954 and 1999},
  year = {2000},
  number = {105},
  month = {2000-01-01},
  publisher = {Journal of Research of the National Institute of Standards and Technology},
  language = {en},
}