% Make "et al." italic.
% https://github.com/plk/biblatex/issues/899
% https://tex.stackexchange.com/questions/40798/how-do-i-get-et-al-to-appear-in-italics-when-using-textcite-or-citeauthor-w
\DefineBibliographyStrings{english}{
  andothers = {\mkbibemph{et\addabbrvspace al\adddot}}
}
\DefineBibliographyStrings{portuguese}{
  andothers = {\mkbibemph{et\addabbrvspace al\adddot}}
}
