Carl Seyfert (Czech Wikipedia)

Analysis of information sources in references of the Wikipedia article "Carl Seyfert" in Czech language version.

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FROMMERT, Hartmut. The Biographical Encyclopedia of Astronomers. Redakce Hockey Thomas. New York: Springer, 2007. ISBN 978-0-387-31022-0. DOI 10.1007/978-0-387-30400-7_1261. Kapitola Seyfert, Carl Keenan, s. 1045–1046.

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FROMMERT, Hartmut. The Biographical Encyclopedia of Astronomers. Redakce Hockey Thomas. New York: Springer, 2007. ISBN 978-0-387-31022-0. DOI 10.1007/978-0-387-30400-7_1261. Kapitola Seyfert, Carl Keenan, s. 1045–1046.