Found these links:
http://www.free-form.ch/tools/refr.html
http://www.free-form.ch/tools/pola.html
http://www.free-form.ch/tools/dicr.html
http://www.free-form.ch/tools/chelsea.html
Maybe this should be the permanent link?
http://www.free-form.ch/tools/refr.html
http://www.free-form.ch/tools/pola.html
http://www.free-form.ch/tools/dicr.html
http://www.free-form.ch/tools/chelsea.html
Maybe this should be the permanent link?