Ernst Friedrich Knorre (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ernst Friedrich Knorre" in Spanish language version.

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1karl-knorre.name

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1springerreference.com

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karl-knorre.name

Héral, Susan. «Astronomers and Other Professions in the Knorre Family». The Dynasty of Knorre Astronomers. Nikolaev: Irina Gudym Publishing. Consultado el 9 de septiembre de 2012.

nasa.gov

ssd.jpl.nasa.gov

«Asteroid Named After the Three Generations of Knorre Astronomers». California Institute of Technology: Jet Propulsion Laboratory.

springerreference.com

Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Consultado el 22 de agosto de 2012.