Links for pysistence

pysistence-0.1.2.tar.gz
pysistence-0.2.0.tar.gz
pysistence-0.2.1.tar.gz
pysistence-0.2.2.tar.gz
pysistence-0.3.0.tar.gz
pysistence-0.3.0a1.tar.gz
pysistence-0.3.0a2.tar.gz
pysistence-0.3.0a3.tar.gz
pysistence-0.3.0a4.tar.gz
pysistence-0.3.0b1.tar.gz
pysistence-0.4.0.tar.gz
pysistence-0.4.1.tar.gz
http://bitbucket.org/jasbaker/pysistence/
http://bitbucket.org/jasbaker/pysistence/
http://blogs.msdn.com/devdev/archive/2005/11/08/490480.aspx
http://blogs.msdn.com/devdev/archive/2005/11/08/490480.aspx
http://en.wikipedia.org/wiki/Persistent_data_structure
http://en.wikipedia.org/wiki/Persistent_data_structure
http://groups.google.com/group/pysistence
http://groups.google.com/group/pysistence
http://www.cs.cmu.edu/~rwh/theses/okasaki.pdf
http://www.cs.cmu.edu/~rwh/theses/okasaki.pdf
http://www.cs.cmu.edu/~sleator/papers/another-persistence.pdf
http://www.cs.cmu.edu/~sleator/papers/another-persistence.pdf