Links for Polygon
3.0.5 home_page
3.0.5 download_url
2.0.5 home_page
2.0.5 download_url
2.0b2 home_page
2.0b2 download_url
3.0.3 home_page
3.0.3 download_url
2.0.3 home_page
2.0.3 download_url
1.17 home_page
1.17 download_url
2.0.4 home_page
2.0.4 download_url
3.0a1 home_page
3.0a1 download_url
3.0.4 home_page
3.0.4 download_url
http://www.cs.man.ac.uk/aig/staff/alan/software/
http://www.cs.man.ac.uk/~toby/alan/software/