The corpus used in determining the local impact consists of:

• legitimate references/citations from all journals indexed in the national citation index and
• legitimate references/citations published in the journals assigned to tier PK52 (K52) or higher in the JBR for the previous reporting year, regardless of whether they are indexed in the national citation index or not.

The legitimacy of citations is determined by special analytical procedures to which all journal references are subject.

The corpus for determining the international impact includes:

• references/citations of all journals indexed in the Web of Science in the same way as in the JCR,
• references/citations from the papers published in the Conference Proceedings Citation Index.

The corpus used in determining the indicators of bibliometric quality based on the processed metadata includes all papers covered by the corpus for determining the local impact.

The corpus for determining the indicators of bibliometric quality based on the processed references/citations consists of:

• papers published in the journals for which all article-level metadata, including references, are available in the national citation index;
• provided that at least one issue of the journal was deposited in the Repository before the reporting deadline.