@article{Padlyak:2016,
  author  = "B. Padlyak and R. Lisiecki and W. Ryba-Romanowski",
  title   = "Spectroscopy of the Er-doped lithium tetraborate glasses",
  journal = "Optical Materials",
  volume  = "Vol. 54",
  pages   = "126--133",
  year    = "2016",
  note    = "[B. Padlyak - podwójna afiliacja]",
}