O-rengas (Finnish Wikipedia)

Analysis of information sources in references of the Wikipedia article "O-rengas" in Finnish language version.

refsWebsite

Global rank Finnish rank

216^th place

168^th place

1archive-it.org

910^th place

2,879^th place

3,907^th place

3,841^st place

about.com

inventors.about.com

Mary Bellis: O-renkaan historia About.com. Arkistoitu 15.3.2009. Viitattu 1.11.2014. engalnati

archive-it.org

wayback.archive-it.org

Mary Bellis: O-renkaan historia About.com. Arkistoitu 15.3.2009. Viitattu 1.11.2014. engalnati

uh.edu

John h. Lienhard: O-renkaan historiasta uh.edu. Houstonin yliopiston sivut. Viitattu 1.11.2014. (englanti)