During the last decade, as an experiment, JETP Letters were publishing invited mini reviews based on the results of the selected ended projects funded by the Russian Foundation for Basic Research and the Russian Science Foundation. Such mini reviews have proven to be popular and attract considerable readership. As a result, starting from July 2020, the Editorial Board extends this practice and beyond the invited mini reviews also encourages authors to submit the mini-reviews by themselves.
The rules and practices applied to submitted regular letters and reviews can be found at http://www.jetpletters.ru/en/info.shtml
Mini reviews, like regular articles, are subject to the refereeing process which implies a peer review and a discussion among the members of the Editorial Board. In order to be accepted, the mini-reviews should comply with all standard rules established by the journal for accepted manuscripts.