LUMEN Publishing House scans each article accepted for publication with the Crossref Similarity Check - iThenticate software only after the article is considered final, so as not to make any changes that may increase the likelihood to be above the accepted limit, which is at most 5% to 10% similarity (due to the specific of each article). LUMEN expresses zero tolerance to plagiarism, but we accepted at most 10% similarity with other sources, which are due to specific denominations, internationally accepted nomenclatures, and/or expression that are common knowledge in the field.  The articles that were proven to have plagiarism elements will automatically be rejected from publication.

If the article exceeds the accepted quota of similarity, but it is not proved to be plagiarised, the editor could send the article back to the authors, to motivate the identified similarities, and eventually to correct possible negligence.

If suspicions of plagiarism occur after the initial check or even after the publication of the paper – that implies the paper retraction, either partially, or entirely - the full refund of the open-access fee for is not possible.