Ορίζοντας γεγονότων (Greek Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ορίζοντας γεγονότων" in Greek language version.

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archive.org

  • Eric Chaisson (1990). Relatively Speaking: Relativity, Black Holes, and the Fate of the Universe. W. W. Norton & Company. σελ. 213. ISBN 978-0393306750.