@article{Dereń:2018,
  author  = "P. Dereń and D. Sztolberg and B. Brzostowski and W. Walerczyk",
  title   = "Spectroscopic properties of LaAlO3:Tm3+ nanocrystals",
  journal = "Optical Materials",
  volume  = "Vol. 83",
  pages   = "68--72",
  year    = "2018",
}