@misc{1196846,
  author = {Elizabeth A Mackey and Donala A Becker and Rabia D Oflaz and Rick L Paul and Robert R Greenberg and Richard M Lindstrom and Lee L Yu and Laura J Wood and Stephen E Long and W Robert Kelley and Jacqueline L Mann},
  title = {Certification of NIST Standard Reference Material 1575a pine needles and results of an international laboratory comparison:},
  year = {2004},
  month = {2004-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.260-156},
  language = {en},
}