Кристиан Биркеланд (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Кристиан Биркеланд" in Bulgarian language version.

refsWebsite

Global rank Bulgarian rank

6^th place

11^th place

1springerreference.com

low place

low place

2,613^th place

3,539^th place

archive.org

Lucy Jago. The Northern Lights. New York, Alfred A. Knopf, 2001. ISBN 0-375-40980-7.

springerreference.com

Hockey, Thomas. The Biographical Encyclopedia of Astronomers. Springer Publishing, 2009. ISBN 978-0-387-31022-0. Посетен на 22 август 2012.

uio.no

fys.uio.no

Professor Alf Egeland. Olav Christian Bernhard Birkeland // Research group for Plasma and Space Physics, University of Oslo.