@article{les_agrandissements_de_94f2,
  title = {Les agrandissements de la Biblioth\`eque nationale \`a Paris},
  author = {Letort, Charles},
  year = {1879},
  number = {\\{II\\}},
  pages = {329-330},
  journal = {La Nature},
  url = {http://cnum.cnam.fr/\\{CGI\\}/fpage.cgi?4\\{KY\\}28.13/333/100/436/8/421},
}