Articles in the volumes have to be original, authored and not previously published in other publications (periodicals, collections and monographs). They are peer-reviewed and published:
- size – up to 10 standard pages (=18,000 characters, with spaces), incl. main text, notes, tables, illustrations, appendices and their titles and descriptions;
- formatting – according to the applied template. The special fonts used for Arabic, Old Bulgarian, Old Greek, etc. are applied separately to the text;
- languages – Bulgarian, English, French, German, Russian, Italian, and Spanish.
