@article{Wójcik:2003,
  author  = "A. Borsowska and S. Szarska and M. Jasiorski and K. Maruszewski",
  title   = "Optical and structural properties of sol-gel derived bioactive glasses",
  journal = "Optica Applicata",
  volume  = "Vol. 33",
  number  = "no 1",
  pages   = "107--114",
  year    = "2003",
}