Registration and login are required to submit items online and to check the status of current submissions.
Close
WorldCat (OCLC) BASE (Bielefeld) PKP Index Google Scholar OAI-PMH Metadata
Olga Y.Trofimenko ORCID iD Saint Petersburg University, Russian Federation Russian Federation
Sergei F. Sutyrin ORCID iD Saint Petersburg University, Russian Federation Russian Federation