reference.bib in overleaf code example

Example: reference.bib in overleaf

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}

\usepackage[
backend=biber,
style=alphabetic,
sorting=ynt
]{biblatex}

\addbibresource{mybibliography.bib}

\title{Bibliography management: \texttt{biblatex} package}
\author{Share\LaTeX}
\date{ }

\begin{document}

\maketitle

\section{First section}

Using \texttt{biblatex} you can display bibliography divided into sections,
depending of citation type. 
Let's cite! The Einstein's journal paper \cite{einstein} and the Dirac's 
book \cite{dirac} are physics related items. 
Next, \textit{The \LaTeX\ Companion} book \cite{latexcompanion}, the 
Donald Knuth's website \cite{knuthwebsite}, \textit{The Comprehensive 
Tex Archive Network} (CTAN) \cite{ctan} are \LaTeX\ related items; but 
the others Donald Knuth's items \cite{knuth-fa,knuth-acp} are dedicated 
to programming. 

\medskip

\printbibliography
\end{document}