将“可引文献”与“不可引文献'分别统计
例如 PLoS One的“不可引文献'比例
Journal's Citable vs. Non Citable Documents
Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows. http://www.scimagojr.com/journalsearch.php?q=10600153309&tip=sid&clean=0