@article{Padlyak:2010,
  author  = "B. Padlyak and W. Ryba-Romanowski and R. Lisiecki and V. Adamiv and J. Burak and I. Teslyuk and A. Banaszak-Piechowska",
  title   = "Optical spectra and luminescence kinetics of the Sm3+ and Yb3+ centres in the lithium tetraborate glasses",
  journal = "Optica Applicata",
  volume  = "Vol. 40",
  number  = "no 2",
  pages   = "427--438",
  year    = "2010",
}