General
Editors reserve the right to adjust style to certain standards of uniformity. Original manuscripts are discarded one month after publication unless the Publisher is asked to return original material after use. Please use Word or Word Perfect files for the text of your manuscript.

Structure
We suggest to follow this order when typing manuscripts: Title, Authors, Affiliations, Abstract, Keywords, Main text, Acknowledgements, Appendix, References, Figure Captions and then Tables. Please supply figures imported into the text AND also separately as original graphics files. Collate acknowledgements in a separate section at the end of the article and do not include them on the title page, as a footnote to the title or otherwise.

Text Layout
The manuscript must be typed using double spacing and wide A4 paper (3 cm) margins (Top, Bottom, Left, Right) with 12 pt Times New Roman font size up to 18 pages (maximum). Present tables and figure legends on separate pages at the end of the manuscript. All the manuscript pages must be numbered consecutively.

Abstract
A self-contained abstract outlining in a single paragraph the aims, scope and conclusions of the paper must be supplied.

Keywords
Immediately after the abstract, please provide a maximum of six keywords (avoid, for example, 'and', 'of'). Be sparing with abbreviations: only abbreviations firmly established in the field may be eligible.

Symbols
As there is considerable variation in nomenclature and unit systems from country to country, authors are required to include a list of symbols which they have used in their manuscripts, and of the units in which the corresponding qualities are measured. Another possibility is to define the symbols along the manuscript. SI units should be used where possible.

Units
Follow internationally accepted rules and conventions: use the international system of units (SI). If other quantities are mentioned, give their equivalent in SI.

Maths
Number consecutively any equations that have to be displayed separately from the text (if referred to explicitly in the text).

References
All publications cited in the text should be presented in a list of references following the text of the manuscript. Along the text,  indicate references by number(s) in square brackets in line with the text.