@Book{gowers08a,
  author =	 {Timothy Gowers and June Barrow-Green and Imre
                  Leader},
  title =	 {The Princeton Companion to Mathematics},
  publisher =	 {Princeton University Press},
  year =	 2008,
  isbn =	 {0691118809},
  abstract =	 {This is a one-of-a-kind reference for anyone with a
                  serious interest in mathematics. Edited by Timothy
                  Gowers, a recipiernt of the Fields Medal, it
                  presents nearly 200 entries, written especially for
                  this book by some of the world's leading
                  mathematicians, that indroduce basic mathematical
                  tools and vocabulary; trace the development of
                  modern mathematics; explain essential terms and
                  concepts; examine core ideas in major areas of
                  mathematics; describe the achievements of scores of
                  famous mathematicians; explore the impact of
                  mathematics on other disciplines such as biology,
                  finance, and music---and much, much more.},
  url = 	 {http://jmvidal.cse.sc.edu/library/gowers08a.pdf}
}