main.tex

% !TEX root = pwd/main.tex

\documentclass{article}

\usepackage[backend=biber]{biblatex}
\addbibresource{mybib.bib}

\begin{document}
  \section{Hey}\label{sec:one}

    Awesome work made by \cite{small}.

  \section{You}

    But \cite{big} is better.
    
    \printbibliography
\end{document}

mybib.bib

%  a sample bibliography file
%

@article{small,
author = {Freely, I.P.},
title = {A small paper},
journal = {The journal of small papers},
year = 1997,
volume = {-1},
note = {to appear},
}

@article{big,
author = {Jass, Hugh},
title = {A big paper},
journal = {The journal of big papers},
year = 7991,
volume = {MCMXCVII},
}