thos green “about my work” http://homepage.ntlworld.com/greenery/workStuff/res-CDs.html

resource site http://www.cl.cam.ac.uk/users/afb21/CognitiveDimensions/

http://citeseer.nj.nec.com/77679.html

in ProgrammingLanguage design http://www.thomas-green.ndtilda.co.uk/workStuff/res-proglangs.html