增加以下参考文献中的圆圈大小

Question

 \documentclass{article}
    \makeatletter
    \def\@biblabel#1{\textcircled{\scriptsize #1}}
    \makeatother
    \begin{document}
    \begin{thebibliography}{99}
\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.

\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.

    \end{thebibliography}
    \end{document}

如果参考文献列表超过 10 个，则可能看起来不太美观。如何增加圆圈的大小？

它看起来像这样：

Answer 1

您可以使用该circledsteps包：

\documentclass{article}

\usepackage{circledsteps}

\makeatletter
\def\@biblabel#1{{\scriptsize\CircledText{#1}}}
\makeatother

\begin{document}
\begin{thebibliography}{99}
\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.

\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.

\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.

\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.
\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.

\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.
\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.

\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.
\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.

\bibitem{Naj} H. Najafi, Some numerical radius inequality for several operators, Linear Algebra Appl. 588 (2020) 489-496.
\end{thebibliography}
\end{document}