Authors: B M Ludbrook; G Levy; P Nigge; M Zonno; M Schneider; D J Dvorak; C N Veenstra; S Zhdanovich; D Wong; P Dosanjh; C Straßer; A Stöhr; S Forti; C R Ast; U Starke; A Damascelli Journal: Proc Natl Acad Sci U S A Date: 2015-09-08 Impact factor: 11.205