"Huygens, Christiaan". [[İfade hatası: Beklenmedik < operatörü.]] UK Dictionary. Oxford University Press. Erişim tarihi: 13 Ağustos 2019.Arşivlenmesi gereken bağlantıya sahip kaynak şablonu içeren maddeler (link)
Baalke, R. (2011). "Historical Background of Saturn's Rings". solarviews.com. Later, it was determined that Saturn's rings were not solid but made of several smaller bodies. 11 Temmuz 2021 tarihinde kaynağından arşivlendi.
tudelft.nl
repository.tudelft.nl
van den Bosch, D. (2018). The application of continued fractions in Christiaan Huygens planetarium.[1] 13 Nisan 2021 tarihinde Wayback Machine sitesinde arşivlendi.
Baalke, R. (2011). "Historical Background of Saturn's Rings". solarviews.com. Later, it was determined that Saturn's rings were not solid but made of several smaller bodies. 11 Temmuz 2021 tarihinde kaynağından arşivlendi.
van den Bosch, D. (2018). The application of continued fractions in Christiaan Huygens planetarium.[1] 13 Nisan 2021 tarihinde Wayback Machine sitesinde arşivlendi.