@article{Padlyak:2006,
  author  = "B. Padlyak and O. Vlokh and K. Fabisiak and K. Sagoo and B. Kukliński",
  title   = "Optical spectroscopy of the Er-doped glasses with 3CaO-Ga2O3-3GeO2 composition",
  journal = "Optical Materials",
  volume  = "Vol. 28",
  number  = "no 1-2",
  pages   = "157--161",
  year    = "2006",
}