http://picprojects.org.uk/projects/lc/index.htm#Schematic
http://hypnocube.com/pictures/
http://www.lomont.org/Projects/LEDCube/LEDCube.php
http://www.davidwyatt.me.uk/ledcube/cubedetails.html
http://courses.cit.cornell.edu/ee476/FinalProjects/s2008/pae26_rwc28/pae26_rwc28/index.html
http://wiki.blinkenarea.org/index.php/L8CubeEnglish
http://entropia.de/wiki/LED-Cube
http://www.instructables.com/id/SG70TBHFJ34CXEO/