In June 2020 the work The positions of lanthanum (actinium) and lutetium (lawrencium) in the periodic table was on the 27th place in the ranking of the most reliable and popular publications with DOI number 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 work was on the 2,395th place in June 2020. From Wikipedians' point of view, "The positions of lanthanum (actinium) and lutetium (lawrencium) in the periodic table" is the 2,395th most reliable publication with DOI number in different language versions of Wikipedia (AR-score).
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. 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).