\\ begin{ thebibliography} {widest- label}\\ bibitem[ label] {cite_ key}...\\ end{ thebibliography} widest- label: Text que, un cop imprès, és aproximadament tant ample com l' etiqueta d' element més ample produïda per les ordres\\ bibitem\\ bibitem: Especifica un element de bibliografia
\\begin{thebibliography}{widest-label} \\bibitem[label]{cite_key}... \\end{thebibliography} widest-label: Text that, when printed, is approximately as wide as the widest item label produces by the \\bibitem commands \\bibitem: Specify a bibliography item