Enlaces:
[1] http://www.aspira.org/es/user/login?destination=comment/reply/482%23comment-form
[2] http://www.nsf.gov/index.jsp
[3] http://www.nsta.org/programs/craftsman/
[4] http://www.nsta.org/programs/duracell
[5] http://web.mit.edu/invent/a-main.html
[6] http://www.siemens-foundation.org/competition/default.html
