Bibliografie

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   * Hubert Reeves - Răbdare în azur ed.Humanitas, 1993
    * Stephen W. Hawking, Leonard Mlodinow – O mai scurtă istorie a timpului ed. Humanitas, 2007
    * Jean Guitillon - membru al Academiei Franceze , Grişka şi Igor Bogdanov - Dumnezeu şi ştiinţa ed. Harisma, Bucureşti, 1992
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