Ernst Hartwig (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ernst Hartwig" in Catalan language version.

refsWebsite

Global rank Catalan rank

1springerreference.com

low place

low place

springerreference.com

Hockey, Thomas. The Biographical Encyclopedia of Astronomers. Springer Publishing, 2009. ISBN 978-0-387-31022-0 [Consulta: 22 agost 2012].