Write on the topic "Security in GSM networks", with the following characteristics:

Layout: single column throughout.

Font: Times New Roman (12 point).

Title: bold; lower case with caps on all main words.

Abstract: no references; no paragraphs; no bullets, etc. (500 words limit)

Keywords: Include keywords such as: keyword1; keyword2; keyword3; keyword4 (6 keywords max.)

Sections: all sections are to be numbered, starting with the introduction, in the style: 1., 1.1, 1.2, ..., 2., 2.1, ... etc. The references section is not to be numbered. All section headings and sub-headings should use minimal caps.

Figures: all figures should have meaningful captions and be numbered, e.g. Fig. 1.

Tables: all the tables should have meaningful captions and be numbered, e.g. Table 1.

Equations: all equations are to be numbered sequentially with the numbers in round brackets, referred to in text as: Equation (1); use initial cap in mid-sentence.

References: within the text of the manuscript should follow the style: [1]; [13]; [1, 3 - 7] also [4, p. 301]. Listed at the end of the manuscript in the style:

Journal papers and books

1. F. T. Kendle and P. R. Fried, The article title, The Journal Title, 3(4), 2001, pp. 10-15.

2. F. T. Kendle and P. R. Fried, Book Title, Publisher, Place, date, pp. 10-15.

3. Author, Article title, in J. Bloggs and R. Smith (eds), Book title, vol. 3, 2nd edn, Publisher, Place, Date, p.7.

All authors are to be cited rather than one author followed by et al. Conference proceedings

4. Author, Paper title, Proceedings Title, place, date of conference, date of publication, pp. 1-2. Websites

5. Universidad Nacional de Educación a Distancia, http://www.uned.es Accessed 10 January 2010.