i've thesis.tex


% Inclusione pacchetti %
\usepackage[colorlinks, citecolor=black, filecolor=black, linkcolor=black, urlcolor=black] {hyperref}

% Stile della pagina %  
\renewcommand{\sectionmark}[1]{\markright{\thesection\ #1}}
\addtolength{\oddsidemargin}{15mm} %margine pagina sinistro
\addtolength{\evensidemargin}{-15mm} %margine pagina destro



in which,before the end of document I've included \bibliographystyle and /bibliography as suggested from various guides. Created bib file named as bibliografia


and then i try in any latex page to use the command \cite{pippo} (keyword). Over leaf gives me a warning

LaTeX Warning: Citation `pippo' on page 1 undefined on input line 8

where page 1 input line 8 is where I use the command \cite. How can I make it work ? I just need a bibliography but for websites.

  • I edited the title of your question. I hope that I got it right. If not, then change it back. Commented Dec 10, 2016 at 18:55
  • Your code (minus all the \subfile) compiles for me just fine on Overleaf; and the citation shows up as well. Perhaps check that your bib file is named bibliografia.bib and not bibliografia.BIB!
    – imnothere
    Commented Dec 11, 2016 at 2:11
  • thank you Manuel, you got it right. Lim just make my check my file and I'll make you know
    – Fedeco
    Commented Dec 11, 2016 at 17:57
  • The real reason here is because bibliographies in the "main" file are not handled in the "subfiles", which Federico is using: tex.stackexchange.com/questions/107064/… . Solved using a similar solution.
    – imnothere
    Commented Dec 12, 2016 at 2:19
  • Thank you for your help everyone, Lim of overleaf support staff did a great job and fixed the problem.
    – Fedeco
    Commented Dec 12, 2016 at 9:18

1 Answer 1


Please read this site before you post a new question. Here it is explained how to provide a so-called minimal working example.

Since you just have two references, I recommend that you use a manual bibliography without the use of a database approach like BiBLaTeX or BiBTeX (outdated).

I prepared a simple setup with an article document class. If you want to use report or book then you should change the this line

\addcontentsline{toc}{section}{\refname} % section

into this

\addcontentsline{toc}{chapter}{\refname} % chapter

This code snipped includes the name of the reference (depending on the document language which is defined as an option to the babel package) to the table of contents (toc).




% load as last package


\title{Simple Bibliography without BiBTeX or BiBLaTeX}
\author{Manuel Kuehner}


\section{Just a Random Section}

\section{Section with a Cite of a Website}

See \cite{bib:www:WebsiteOne} for more details.


Author, \emph{Title}, Internet Source, Last Checked: 2nd December 2016, \url{http://www.manuelkuehner.de/}



enter image description here

If you have much more references then you can have a look at my tutorials (https://www.youtube.com/playlist?list=PL-Wl6F3zpJVwcDHK2rg9bDEEMjo70zp87) or the system BiBLaTeX/Biber in general.

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