Trabalhos
http://www.mit.edu/~ibaran/kseg.html
http://cvs.savannah.gnu.org/viewvc/texi2html/texi2html/i18n/pt_BR?view=log#rev1.6
http://maxima.cvs.sourceforge.net/viewvc/maxima/maxima/AUTHORS?revision=1.7&view=markup
http://maxima.sourceforge.net/docs/manual/pt_BR/maxima.html
http://www.asymptopia.org/staticpages/index.php?page=MathCrosswordBuilder