# How to change labels of references to the letter “A” followed by number?

I would like to change the labels of references to the letter "A" followed by numbers, e.g.

[A1] Authors, Paper name
[A2] Autrors, Paper name


I have already read this question but I did'nt understand how to change it according to my needs. I also need to do this inside of thebibliography environment because the template that I am using do not accept bibtex external files.

Edit:

I continued to try changing the answer of the question that I linked here and managed to do that:

\begin{thebibliography}{9}

\makeatletter
\def\@bibitem#1{\item\if@filesw \immediate\write\@auxout
{\string\bibcite{#1}{\alphalph{\value{\@listctr}}}}\fi\ignorespaces}
\def\@biblabel#1{[A{#1}]}
\makeatother

\bibitem{Test} Author1, Title1

\bibitem{Test2} Author2, Title2

\end{thebibliography}


Which resulted in:

But inside the text the citation still not change

Example of citation \cite{Test}.


\makeatletter

The redefinition of \@bibitem changes the item in the bibliography, the {A\the\value{\@listctr}} sets the label for \cite.