Carl Christensen (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Carl Christensen" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

2^nd place

4^th place

26^th place

65^th place

doi.org

dx.doi.org

Benedict, R. C. (1912). «Carl Frederik Albert Christensen: Some Biographical Notes». American Fern Journal. 2 (2): 53–57. doi:10.2307/1544606 .

jstor.org

Asplund, E. (1945). «Carl Christensen». American Fern Journal. 35 (4): 131–132. JSTOR 1545652 .