Bibliography

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http://ircamera.as.arizona.edu/NatSci102/NatSci102/lectures/jupmoon.htm
http://www.solarviews.com/germ/io.htm
http://twentypercentcooler.net/post/show/18854
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http://ircamera.as.arizona.edu/NatSci102/NatSci102/lectures/jupmoon.htm
http://www.windows2universe.org/jupiter/moons/io_interior.html
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