(HTM) BackspaceDelete-single.html
 (HTM) BackspaceDelete.html
 (DOC) BackspaceDelete.pdf
 (TXT) BackspaceDelete.txt
 (HTM) actions.html
 (HTM) concl.html
 (HTM) index.html
 (HTM) intro.html
 (HTM) morehack.html
 (HTM) notwork.html
 (HTM) system.html
 (HTM) why.html
 (HTM) writing.html
 (HTM) x.html