Question: Hello
Suppose I have 3 references that goes one after another i.e [1][2][3].

But I want to see [1]-[3].

What should I do.

Thank you.

Answer: 
If you put more than one tag in your `\cite` command, such as:

```
\cite{pugh1, pugh2, barneymcgrew}

```

these will be listed together within the same square brackets, and look something like [1,4,9] in the final document. If some or all of the references which you cite turn out to have sequential numbers, this will be indicated in the document something like [1,3-6,8-9] and so on.

Note that the way in which you sort your bibliography will make a difference to this: if you choose to list items in the order in which they are first cited in the text, this will largely happen naturally. However, if you sort your bibliography by, say, author's name, your references are much less likely to be consecutive.
If you're using biblatex, you can use the `numeric-comp` style (see [Section 3.3.1](https://mirror.unpad.ac.id/ctan/macros/latex/contrib/biblatex/doc/biblatex.pdf#subsection.3.3) of the documentation)

```tex
\usepackage[style=numeric-comp]{biblatex}

```

This will sort (and compress) the numbers inside the citation `[8, 3, 1, 7, 2]`, becomes `[1–3, 7, 8]`

Additionally, if you want the citations to be numbered in the order they appear in the text, you can specify no sorting to biblatex with

```latex
\usepackage[style=numeric-comp, sorting=none]{biblatex}

```

So if the above example was the first citation in the text, it would become `[1–5]`