Perm (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Perm" in Polish language version.

refsWebsite

Global rank Polish rank

2^nd place

6^th place

18^th place

140^th place

1stratigraphy.org

2,562^nd place

2,151^st place

193^rd place

528^th place

doi.org (Global: 2^nd place; Polish: 6^th place)

B.U. Haq, S.R. Schutter. A Chronology of Paleozoic Sea-Level Changes. „Science”. 322 (5898), s. 64–68, 2008. DOI: 10.1126/science.1161648. Bibcode: 2008Sci...322...64H.

harvard.edu (Global: 18^th place; Polish: 140^th place)

adsabs.harvard.edu

B.U. Haq, S.R. Schutter. A Chronology of Paleozoic Sea-Level Changes. „Science”. 322 (5898), s. 64–68, 2008. DOI: 10.1126/science.1161648. Bibcode: 2008Sci...322...64H.

stratigraphy.org (Global: 2,562^nd place; Polish: 2,151^st place)

International Stratigraphic Chart. International Comission on Stratigraphy, grudzień 2016. [dostęp 2016-12-13]. (ang.).

wired.com (Global: 193^rd place; Polish: 528^th place)

Alexandra Witze: Massive Volcanism May Have Caused Biggest Extinction Ever. Wired, 2010-12-14. [dostęp 2010-12-15]. (ang.).