Here we provide a list of books. These books give additional information to the respective chapters. A "Click" on a link will take you to an AMAZON.COM webpage that offers in most cases bookreviews and allows you to mailorder the selected book.

Chapter 21

Tyson, N. D. & Goldsmith, D.



Origins
W. W. Norton, New York 2004

ISBN: 0393327582

Greene, B.



The Elegant Universe
Vintage Books, New York 2000

ISBN: 0375708111

Kaku, M.



Parallel Worlds
Anchor 2006

ISBN: 1400033721