Creative Common License, with attribution.

This image comes from http://www.veni.com/venko-azbuka.html. The site owner allows its images to be used under creative commons licensing, provided there is attribution. There are no alternative free images.

Non-free content criteria

1. No free equivalent. There is no free equivalent of this conference.
2. Respect for commercial opportunities. This image is not used in a manner that is likely to replace the original market role of the original copyrighted media.
3. (a) Minimal usage. This image is only used in Macedonian alphabet and has been tagged for no-use in galleries. (b) Minimal extent of use. Picture is only used in this article.
4. Previous publication. This image was published on the http://www.veni.com website, and has been authorized for "fair-use" under a creative commons license.
5. Content. The image is of incidents related to the subject of the article.
6. Media-specific policy. The material meets Wikipedia's media-specific policy.
7. One-article minimum. The image is used in at least one article.
8. Significance. The image to significantly increase readers' understanding of the topic, and its omission would be detrimental to that understanding.
9. Restrictions on location. The image has been restricted in use only to the relevant article(s).
10. Image description page. The image description page contains the following:

• Attribution of the source of the material and, if different from the source, of the copyright holder.
• A copyright tag that indicates which Wikipedia policy provision is claimed to permit the use. For a list of image copyright tags, see Wikipedia:Image copyright tags/Non-free content.
• The name of each article (a link to the articles is recommended as well) in which fair use is claimed for the item, and a separate fair-use rationale for each use of the item, as explained at Wikipedia:Non-free use rationale guideline. The rationale is presented in clear, plain language, and is relevant to each use.