Deep-sky-objekt (Swedish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Deep-sky-objekt" in Swedish language version.

refsWebsite

Global rank Swedish rank

2books.google.com

3^rd place

37^th place

books.google.com

Fred Schaaf (1998) (på engelska). 40 Nights to Knowing the Sky: A Night-by-Night Sky-Watching Primer. Henry Holt and Company. sid. 113. ISBN 978-0-8050-4668-7. https://books.google.com/books?id=wcoRISdUnu4C&pg=RA1-PA13. Läst 12 augusti 2020
Ian Ridpath (2001) (på engelska). The Illustrated Encyclopedia of the Universe. Watson-Guptill Publications. sid. 273. ISBN 978-0-8230-2512-1. https://books.google.com/books?id=0IUTwSFOtY4C&pg=PT263. Läst 12 augusti 2020