Joshua Rothman (2011-03-13). «Building a better brick». Boston Globe. http://www.boston.com/bostonglobe/ideas/articles/2011/03/13/building_a_better_brick/. Ανακτήθηκε στις 2011-03-05. «Bricks are among the world’s oldest building materials — the first were used as long ago as 7,500 B.C. ... An especially beautiful proposal by Rizal Muslimin at the Massachusetts Institute of Technology came in as a runner-up: BeadBricks are flat, triangular bricks that can be combined in three dimensions (rather than the usual two).»