@inproceedings{CTT100734159,
  author = {Y. Shimamoto and T. Suto and H. Ozawa and M. Hatano and S.Oda and T. Iwasaki},
  title = {Very Narrow Linewidths in the Fluorescence from Germanium-Vacancy Centers in Nanodiamonds},
  booktitle = {},
  year = 2016,
}