Scimago Journal Country Rank service data on 3 years citations per document collected in November 2023, for the period 2000-2020, including titles for which full data is available for these 21 years

Citations per document counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal.单篇文献均被引频次（Citations per document）的计算方式为：统计某期刊所有文献获得的总被引次数，再将该数值除以该期刊已发表的文献总数量。