Analysis of information sources in references of the Wikipedia article "Comet Shoemaker–Levy 9" in English language version.
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: CS1 maint: multiple names: authors list (link)For Jupiter-interacting comets of greater than 1 km diameter, a Jupiter impact takes place every 500–1000 yr, and an Earth impact every 2–4 Myr.
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: CS1 maint: multiple names: authors list (link)For Jupiter-interacting comets of greater than 1 km diameter, a Jupiter impact takes place every 500–1000 yr, and an Earth impact every 2–4 Myr.
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