http://yihui.name/en/2011/01/happy-new-year-with-r-2011-fireworks/
Home » NewsHappy new year 2012 with RDecember 24, 2011 · 1 min · word · Matteo Redaelli http://yihui.name/en/2011/01/happy-new-year-with-r-2011-fireworks/
http://yihui.name/en/2011/01/happy-new-year-with-r-2011-fireworks/