Publishing Policies

  1. Open Access Policy
  2. Article Processing Charges / Fees
  3. Copyright & Licensing
  4. Archiving & Preservation Policy
  5. LOCKSS/CLOCKSS archive system
  6. Repository & Self-Archiving Policy

Open Access Policy

BulgNJ runs on Open Journal Systems (OJS) – an open-source journal management and publishing software, freely provided by the Public Knowledge Project (PKP) under the GNU General Public License.

In accordance with the general processes of democratization of knowledge and following the principles of Linked Open Data, the journal policy is to enhance the visibility, offering easy access to the scientific research.

Article Processing Charges / Fees

BulgNJ does not charge any registration, submission or publication fees for papers and other materials.

Copyright & Licensing

All authors hold the copyright on their articles.

The content of the site and its metadata are licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.

Archiving & Preservation Policy

BulgNJ ensures long-term preservation of its content through the Public Knowledge Project’s PKP Preservation Network (PN) and regular backups of the OJS platform.

LOCKSS/CLOCKSS archive system

The journal enables the LOCKSS (Lots of Copies Keep Stuff Safe) and CLOCKSS (Controlled LOCKSS) archival systems to ensure long‑term digital preservation of its content. Through these distributed preservation networks, the journal’s published materials are securely stored in multiple international repositories, guaranteeing permanent access even in the event of data loss or technical failure. This commitment ensures that all published articles remain available to the scholarly community without interruption.

Repository & Self-Archiving Policy

Authors are permitted and encouraged to deposit all versions of their article (preprint, accepted manuscript, and published version) in institutional or disciplinary repositories, personal websites, or academic networks at any time, without embargo, provided that full citation to the original publication in The Bulgarian Numismatic Journal (BulgNJ) is included.

Readers are encouraged to read, download, print, share and distribute the published articles free of charge.