Authors can use the OOpenArt (optional open article) publication model for a specific publishing fee. Full-text of an OOpenArt paper is freely accessible through the official website of the journal. These papers are published in the printed journals also as well as all the traditional ones. Peer-review process and quality requirements are the same in case of both traditional and OOpenArt manuscripts. All accepted new manuscripts and papers published earlier can be OOpenArt.
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