Toka: Dallime mes rishikimesh

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* {{Cite book| ref=harv|editor=Arthur N. Cox | title = Allen's Astrophysical Quantities | url = https://books.google.com/?id=w8PK2XFLLH8C&pg=PA244 | edition = 4th |year=2000| publisher = AIP Press | location = New York |isbn=978-0-387-98746-0 | accessdate=17 gusht 2010|pages=244}}

* {{Cite book| ref=harv|title=Allen's Astrophysical Quantities | last=Allen| first = Clabon Walter | last2=Cox| first2 = Arthur N. | publisher = Springer |year=2000|isbn=978-0-387-98746-0 | url = https://books.google.com/?id=w8PK2XFLLH8C&pg=PA296 | accessdate=17 gusht 2010|pages=296}}

* {{Cite book| ref=harv|accessdate=29 prill 2016 |author=International Earth Rotation and Reference Systems Service (IERS) Working Group | chapter = General Definitions and Numerical Standards |chapter-url=http://www.iers.org/SharedDocs/Publikationen/EN/IERS/Publications/tn/TechnNote32/tn32_009.pdf?__blob=publicationFile&v=1 |editor-first=Dennis D. |editor-last=McCarthy|editor2-first=Gérard |editor2-last=Petit| url = http://www.iers.org/SharedDocs/Publikationen/EN/IERS/Publications/tn/TechnNote32/tn32.pdf?__blob=publicationFile&v=1 | title = IERS Conventions (2003) | publisher = Verlag des Bundesamts für Kartographie und Geodäsie | work = IERS Technical Note No. 32 |year=2004| format = PDF | location = Frankfurt am Main |isbn=978-3-89888-884-4|pages=12}}

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* {{Cite book| ref=harv| title = Allen's Astrophysical Quantities | last=Allen| first = Clabon Walter | last2=Cox| first2 = Arthur N. | publisher = Springer |year=2000|isbn=978-0-387-98746-0 | url = https://books.google.com/?id=w8PK2XFLLH8C&pg=PA294 |pages=294}}

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* {{Cite book| ref=harv| first=R.M. | last=Canup| last2=Asphaug| first2= E.|year=2001| title=An impact origin of the Earth-Moon system | publisher=American Geophysical Union | location= | id=}}