Look at [Mathematical Notes](http://www.mathnet.ru/php/journal.phtml?jrnid=faa&option_lang=eng) and
[Functional Analysis and its Applications](http://www.mathnet.ru/php/journal.phtml?jrnid=mzm&option_lang=eng) and [Russian Mathematical Surveys](http://www.mathnet.ru/php/journal.phtml?jrnid=rm&option_lang=eng) and [Doklady RAN](https://en.wikipedia.org/wiki/Proceedings_of_the_USSR_Academy_of_Sciences) and [Proceedings of the AMS](http://www.ams.org/journals/bproc/2014-01-13/S2330-1511-2014-00017-1/home.html).