264
Robbert Dijkgraaf (University of Amsterdam), interview with author, February 8, 2007.
265
Brian Greene, The Elegant Universe (New York: Vintage Books, 2000), p. 210.
266
Andrew Strominger (Harvard University), interview with author, August 1, 2007.
267
S. Ramanujan, “On Certain Arithmetic Functions,” Transactions of the Cambridge Philosophical Society 22 (1916): 159–184.
268
Lothar Goettsche, “A Conjectural Generating Function for Numbers of Curves on Surfaces,” November II, 1997, arXiv.org, Cornell University archives, .
