The language of the Journal is exclusively English. Contributions will be considered only if they have not been previously published or been submitted elsewhere. Authors are requested to submit manuscripts in duplicate, typewritten using double spacing and ca. 60 characters per line and 30 lines per page. Receipt of a contribution for consideration will be acknowledged immediately by the Editorial Office. The acknowledgement will indicate the paper reference number assigned to the contribution. Authors are particularly asked to quote this number on all subsequent correspondence.
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