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This question already has an answer here:

Numeration in the bibliography looks like

1. Book1
2. Book2

I want to change it to

[1] Book1
[2] Book2

Also, I would like to increase a space between separate item.

I'm using the \begin{thebibliography} command:

\bibitem{} Book1
\bibitem{} Book2
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marked as duplicate by mafp, lockstep, Herbert, Stefan Kottwitz Mar 20 '13 at 11:20

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Can you please add more information? A small example from \documentclass to \end{document}. The default for the standard classes is [1], not 1., so it's important to know what class you're using. – egreg Mar 19 '13 at 22:52
oh sorry, i have coppied code which have changed the numeration, thank you. But how I can increase distance between items? – kobra Mar 19 '13 at 23:05
Still a minimal working example (MWE) is needed. – egreg Mar 19 '13 at 23:06

The first issue seems to have been solved by removing some code changing the labels for the bibliography; for the second issue (the vertical spacing between items) you can use the etoolbox package to patch \thebibliography:




\bibitem{testa} First bibitem.
\bibitem{testb} Second bibitem.


The code above will work, at least, for the standard classes (article, book, report); instead of \baselineskip you can use any other length (10pt, 1ex, etc.) here:


An image of the result:

enter image description here

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