For the history of computers and the development of the hydrogen bomb, I used George Dyson, Turing’s Cathedral, New York: Pantheon Books, 2012; and Stanislaw Ulam, Adventures of a Mathematician, New York: Scribner’s, 1976.
Although the physics in Frank Wilczek and Betsy Devine’s Longing for the Harmonies was beyond me, they express so perfectly my own longing for the harmonies that the book helped guide me as I created the character of Martina Saginor.