http://byteslibres.wordpress.com/2007/03/16/sage-un-sistema-de-algebra-computacional-basado-en-python/ (16.03.2007, sp)
http://georgm.blogspot.com/2007/03/sage-computer-algebra-system.html (14.03.2007, en)
SAGE_Reviews (last edited 2011-01-19 22:17:34 by MikeHansen)
