When a paper is returned for revision prior to final acceptance, the revised version must be submitted within 3 months of the authors' receipt of the referees' reports. The manuscript should be provided in double-spaced typing on A4 size pages. It must be written in English and should not, normally, exceed 6,000 word-equivalents. The main body of the paper is to be preceded by an abstract of about 150 words, reporting concisely on the objectives and conclusions. The metric system is to be used throughout and if it is necessary to quote other units then these should be added in parentheses.
Footnotes are to be avoided.
The manuscript is expected to be written in correct and easily readable English. Both English and American spellings are acceptable, but each paper is expected to follow one style consistently. In referring to figure and equation numbers, the words figure, equation, figures and equations should be abbreviated to Fig, Eqn, Figs and Eqns, respectively. Eqns 38 and 39, on the other hand, relate to Figs 102 and 103, respectively. The symbols may appear in bold-face.