Manuscripts submitted to the editorial office are assessed by reviewers. The editorial office chooses a reviewer based on the subject of the submitted manuscript. The competences of a reviewer are confirmed by the academic achievements. The reviewer is independent of the author of the reviewed manuscript and the editorial office of the journal. Each paper is evaluated in the double-blind review process, in which authors do not know the identity of their reviewers, nor do the reviewers know the identities of the authors. Reviewers assess the work using the electronic system on the basis of questions prepared for a specific title. Reviewers may also provide individual comments on the article. The recommendations of the reviewers are presented to the author in writing. The review procedure respects the principle of confidentiality.