Donald Knuth 2013-05-24-16.03.24

2013-05-24-15.52.012013-05-24-16.02.082013-05-24-16.03.242013-05-24-16.03.492013-05-24-16.04.122013-05-24-16.04.592013-05-24-16.10.38
2013-05-24-16.03.24

[ small | medium | large ]