The IEEE referencing style is used in computing science.
The IEEE style is a numeric system, where citations are numbered in your text within square brackets e.g. . The citation in your text corresponds to a full reference in the list of references at the end of your work. To acknowledge paraphrased ideas the citation number(s) should appear on the same line as the text inside any punctuation.
All references must have their own number. It is not permissible to use one number to cite multiple sources.
Reuse the same number for all subsequent citations of the same source.
Here are a few examples of how citations might appear:
... as demonstrated by Smith  and Brown and Jones .
... as mentioned earlier , –,  a number of studies have investigated these issues
Multiple authors. If you mention the author name(s) as part of your sentence give both names if there are only two. If there are 3 or more authors give only the first name followed by et al. e.g. ... Wood et al.  suggested an alternative approach.
Add page numbers and other pinpoints to specific ideas to the citation number within the square brackets e.g.:
[3, pp. 5-10]
[3, Fig. 1]
[3, Algorithm 5]
A section of text with in-text citations might look like:
This leads to greater needs of probabilistic analysis tools, both for system planning  and for the daily system operation. From the first proposals in the 1970s , a great deal of literature can be found about it. The most straightforward method of solving this problem is Monte Carlo simulation [1, pp. 6-7].
The reference list appears at the end of your work in number order e.g.:
 F. P. Brooks, The Mythical Man-Month: Essays on Software Engineering, Anniversary ed. Boston: Addison-Wesley, 1995.
 T. DeMarco and T. R. Lister, Peopleware: Productive Projects and Teams, 2nd ed. New York: Dorset House Publications, 1999.
 M. Fowler, UML Distilled: A Brief Guide to the Standard Object Modeling Language, 3rd ed. Boston: Addison-Wesley, 2004.
 J. Seguel, “The doctoral program in Computing and Information Sciences and Engineering of the University of Puerto Rico,” Future Gener. Comp. Sy., vol. 19, no. 8, pp. 1293–1298, 2003.
See the guides below for more detail including formatting rules for each reference type e.g. books, chapters, journal articles etc., abbreviations for journal articles and other words and a fuller example of what a reference list might look like.
You may also wish to consult the IEEE Reference Guide. Section V provides further advice and guidance.