Authors: Ondrej L Krivanek; Tracy C Lovejoy; Niklas Dellby; Toshihiro Aoki; R W Carpenter; Peter Rez; Emmanuel Soignard; Jiangtao Zhu; Philip E Batson; Maureen J Lagos; Ray F Egerton; Peter A Crozier Journal: Nature Date: 2014-10-09 Impact factor: 49.962