Definition: Journals are classified into two main categories (NAT and INT) and two sub-categories (INT1 and INT2) based on their audience, distribution and reach.
Available from: The European Science Foundation
Definition: A measure of scientific influence of scholarly journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from. Factors considered for SJR journal rankings include:
Available from: SJR