Copyright information

The submission of a paper implies that it has not been published, or is not under consideration for publication elsewhere. In case it is accepted, it implies as well that the author(s) transfers the copyright to the Faculty of Mathematics and Informatics at the "St. Kl. Ohridski" University of Sofia, including the right to adapt the article for use in conjuction with computer systems and programs and also reproduction or publication in machine-readable form and incorporation in retrieval systems.

The authors are free to use any material, including figures, tables, etc., in their future publications, provided the appropriate citation of their Annuaire's paper is made.