http://links.jstor.org/sici?sici=0039-8322(197609)10%3A3%3C321%3APCPFIA%3E2.0.CO%3B2-M
http://links.jstor.org/sici?sici=0042-062X(197921)12%3A1%3C24%3ACCAPA%3E2.0.CO%3
http://www2.ups.edu/faculty/dkelley/compcorrcode.doc
http://www.usip.edu/writing/handouts/wc/WC43-WritersCompositionCorrectionSheet.pdf