If you would like to cite the SciPy tools in a paper or presentation, the following is recommended:

• Author: Eric Jones, Travis Oliphant, Pearu Peterson and others.

• Title: SciPy: Open Source Scientific Tools for Python

• Year: 2001 -

• URL: http://www.scipy.org

Here's an example of a BibTeX entry:

@Misc{,
  author =    {Eric Jones and Travis Oliphant and Pearu Peterson and others},
  title =     {{SciPy}: Open source scientific tools for {Python}},
  year =      {2001--},
  url = "http://www.scipy.org/"
}