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Virgo Cluster
Location Map
Bibliography
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Charles & Seward, Exploring the X-Ray
universe, Cambridge University Press, 1995.
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Croswell, Ken, "How Far to Virgo?", Astronomy,
March 1995.
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Fabian, A. C., "Cool Gas in the Virgo Cluster?", Science, March 1, 1996.
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"Found: One Black Hole," Popular Science,
October 1994.
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Tucker & Giacconi, The X-Ray universe,
Harvard University Press, 1985.
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