Project Euclid is a non-profit publication platform co-managed by the Cornell University Library and Duke University Press. It provides peer-reviewed journals, monographs and books on theoretical mathematics and statistics. The conference documents currently include 48 professional mathematical and statistical journals published by the United States, Japan, Europe, Brazil, Iran, and other countries. Among them, 29 periodicals were included in SCI. These journals have been collected from the first issue to present, dating back to 1935. The number of articles is more than 103,000. It is an important source of information for mathematics and statisticians.