Proceedings of the National Academy of Sciences of the United States of America is a peer-reviewed multidisciplinary scientific journal. It is the official journal of the National Academy of Sciences, published since 1915, and publishes original research, scientific reviews, commentaries, and letters. According to Journal Citation Reports, the journal has a 2019 impact factor of 9.412. PNAS is the second most cited scientific journal, with more than 1.9 million cumulative citations from 2008–2018. In the mass media, PNAS has been described variously as "prestigious", "sedate", "renowned", and "high impact". More information...
In June 2020 the website pnas.org was on the 566th place in the ranking of the most reliable and popular sources in multilingual Wikipedia from readers' point of view (PR-score). If we consider only frequency of appearance of this source in references of Wikipedia articles (F-score), this website was on the 297th place in June 2020. From Wikipedians' point of view, "pnas.org" is the 717th most reliable source in different language versions of Wikipedia (AR-score).
The website is placed before marvel.com and after google.com.au in multilingual PR ranking of the most reliable sources in Wikipedia.
Popularity and reliability assessment of sources in references of Wikipedia in different languages. Data extraction based on complex method using Wikimedia dumps in July 2020. To find the most popular and reliable sources we used information about over 200 million references of Wikipedia articles. More details in the research "Modeling Popularity and Reliability of Sources in Multilingual Wikipedia". Values for PR-score and AR-score were additinaly increased 100 times (to distinguish smaller values in the ranking).