Iron Particle Nanodrilling of Few Layer Graphene at Low Electron Beam Accelerating Voltages. - Campos-Delgado, Jessica; Baptista, Daniel L.; Fuentes-Cabrera, Miguel; Sumpter, Bobby G.; Meunier, Vincent; Terrones, Humberto; Kim, Yoong Ahm; Muramatsu, Hiroyuki; Hayashi, Takuya; Endo, Morinobu; Terrones, Mauricio; Achete, Carlos A. (Particle & Particle Systems Characterization, 2013)