1) English-language journal 
[journal] Optik – International Journal for Light and Electron Optics, or simply Optik (German for Optics) is a scientific journal, specializing in the optics of light and electrons. It is included in the Web of Science and other standard indexes. Despite its low impact factor (0.507 as of 2008, ranking it 52 out of 64 in the Journal Cita...