@conference{111966,
  author = {William Burr and William Polk},
  title = {A Federal Public Key Infrastructure With Multiple Digital Signature Algorithms},
  year = {1998},
  month = {1998-04-22},
  publisher = {Public-Key Solution Conference, Toronto, CA},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=151179},
  language = {en},
}