Ejnar Hertzsprung (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ejnar Hertzsprung" in English language version.

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amacad.org

"Ejnar Hertzsprung". American Academy of Arts & Sciences. 9 February 2023. Retrieved 25 April 2023.

Schmadel, Lutz D. (2003). "(1627) Ivar". Dictionary of Minor Planet Names – (1627) Ivar. Springer Berlin Heidelberg. p. 129. doi:10.1007/978-3-540-29925-7_1628. ISBN 978-3-540-29925-7.
Schmadel, Lutz D. (2003). "(1693) Hertzsprung". Dictionary of Minor Planet Names – (1693) Hertzsprung. Springer Berlin Heidelberg. p. 135. doi:10.1007/978-3-540-29925-7_1694. ISBN 978-3-540-29925-7.

Hellyer, B. (October 1973). "Ejnar Hertzsprung, 1873–1967". Journal of the British Astronomical Association. 83: 460–461. Bibcode:1973JBAA...83..460H.
Hertzsprung, E. (1913). "Über die räumliche Verteilung der Veränderlichen vom δ Cephei-Typus" [On the spatial distribution of variable [stars] of the δ Cephei type]. Astronomische Nachrichten (in German). 196 (4692): 201–208. Bibcode:1913AN....196..201H.