use bibtex overleaf code example
Example 1: overleaf bibtex file
\usepackage[style=ieee, citestyle=numeric-comp, backend=biber]{biblatex}
\addbibresource{reference.bib}
\begin{document}
\printbibliography
\end{document}
Example 2: overleaf bibtex
@book{texbook,
author = {Donald E. Knuth},
year = {1986},
title = {The \TeX{} Book},
publisher = {Addison-Wesley Professional}
}
@book{latex:companion,
author = {Frank Mittelbach and Michel Gossens
and Johannes Braams and David Carlisle
and Chris Rowley},
year = {2004},
title = {The \LaTeX{} Companion},
publisher = {Addison-Wesley Professional},
edition = {2}
}
@book{latex2e,
author = {Leslie Lamport},
year = {1994},
title = {\LaTeX: a Document Preparation System},
publisher = {Addison Wesley},
address = {Massachusetts},
edition = {2}
}
@article{knuth:1984,
title={Literate Programming},
author={Donald E. Knuth},
journal={The Computer Journal},
volume={27},
number={2},
pages={97--111},
year={1984},
publisher={Oxford University Press}
}
@inproceedings{lesk:1977,
title={Computer Typesetting of Technical Journals on {UNIX}},
author={Michael Lesk and Brian Kernighan},
booktitle={Proceedings of American Federation of
Information Processing Societies: 1977
National Computer Conference},
pages={879--888},
year={1977},
address={Dallas, Texas}
}