Procédé Birkeland-Eyde (French Wikipedia)

Analysis of information sources in references of the Wikipedia article "Procédé Birkeland-Eyde" in French language version.

refsWebsite
Global rank French rank
70th place
196th place
3rd place
11th place
800th place
1,489th place
163rd place
207th place

books.google.com

espacenet.com

worldwide.espacenet.com

  • (en) Kristian Birkeland, « US775123 », sur worldwide.espacenet.com, USPTO, (consulter le brevet en images)

google.com

  • (en) Kristian Birkeland, « US775123 », sur worldwide.espacenet.com, USPTO, (consulter le brevet en images)

loc.gov

lccn.loc.gov