Irsen, Stephan Electron Microscopy and Analytics, Center of Advanced European Studies and Research (caesar), Max Planck Society;
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.085411 (Publisher version)
Schroeder, B., Weber, T., Yalunin, S. V., Kiel, T., Matyssek, C., Sivis, M., et al. (2015). Real-space imaging of nanotip plasmons using electron energy loss spectroscopy. Physical Review B, 92(8): 085411. doi:10.1103/PhysRevB.92.085411.