Manuscripts must be written in English, French or German. They must include a concise abstract of maximum length 150 words. Authors should consult current issues of the Journal for symbols and style conventions, and should take the greatest possible care in preparing the original manuscript.

    Authors are encouraged to prepare their manuscripts in TeX, preferably in LaTeX. In this case, when the manuscript is accepted for publication, authors are requested to send the TeX file to the editor (communicator).