Bibliography
Books:
O'Neill, Gerard K. The High Frontier: Human Colonies in Space
1997.
Webpages:
Cornish, Neil J. Lagrange Point
http://www.physics.montana.edu/faculty/cornish/lagrange.html
Hall, Theodore Wayne:The Architecture of
Artificial-Gravity Environments
for Long-Duration Space Habitation
http://www.artificial-gravity.com/Dissertation/FrontMatter.htm/
Dyson, Freeman J. Life of Gerard K. O'Neill
http://ssi.org/?page_id=11
Baez, John. Lagrange Points
http://math.ucr.edu/home/baez/lagrange.html
Heppenheimer, T.A. Colonies in Spae: Chapter 2.
http://www.nss.org/settlement/ColoniesInSpace/colonies_chap02.html