@misc{1295056,
  author = {Karen Olsen},
  title = {Periodic Table of the Elements},
  year = {2018},
  month = {2018-11-03 04:11:00},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=926382},
  language = {en},
}