Authors whose mother tongue is not English should have their papers checked and amended by a native English speaker. English or American spelling should be used consistently throughout a manuscript.
All manuscripts are subject to copy editing.
At least three proposals for referees will be made. Please be sure to include your e-mail address and fax number on the title page. Please do not transmit electronic data to the publisher until your manuscript has been reviewed and accepted for publication. Authors should make their proof corrections in a printout of the pdf file supplied, checking that the text is complete and that all figures and tables are included. After online publication , further changes can only be made in the form of an Erratum, which will be hyperlinked to the article.