Eelbo, T.; Waåniowska, M.; Thakur, P.; Gyamfi, M.; Sachs, B.; Wehling, T.; Forti, S.; Starke, U.; Tieg, C.; Lichtenstein, A.; Wiesendanger, R.: Adatoms and Clusters of 3d Transition Metals on Graphene: Electronic and Magnetic Configurations. Physical Review Letters 110 (2013), p. 136804/1-5
10.1103/PhysRevLett.110.136804