title={article name},
 url= {https://m**.s*/U****d/Om%20MPB/F****g/Kxyzy.pdf},

While citing this reference, I am getting following error because of the term "%" in the url.

Paragraph ended before \BR@@bibitem was complete.\par

Is using tinyurl/google url shortener a good idea for citing the article's url.


You did not mention which bibliography style you use, but most styles wrap the content of the url field in a \url{...} macro, and provide a very basic definition for it that can not handle special characters like %.

The solution is to simply load the url or hyperref package, as those define sophisticated versions of the \url macro that do handle special characters.

  • 2
    Using 'IEEEtran' bibliography style – Pratap Dheeraj May 6 '13 at 8:22
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    Then using the url or hyperref package should indeed work. – mafp May 6 '13 at 9:06

You need to escape the % in your bib file because the % symbol has special meaning in LaTeX. See http://en.wikibooks.org/wiki/LaTeX/Basics#Reserved_Characters.

Try replacing % with \% in the URL field in the bib file.

  • It doesn't work! Still getting the same error. – Pratap Dheeraj May 7 '13 at 10:07
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    # also need to be escaped (\#) – Nux Mar 10 '14 at 13:47
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    Escaping symbols such as &, #, and % in a URL string pretty much guarantees that the URL string can't be made into a hyperlink if the hyperref package is loaded. It's much better -- certainly much less work in the medium to long term -- to encase the entire URL in a \url{..} directive. – Mico Aug 14 '16 at 11:52

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