M. Godlewski, E. Wolska, S. Yatsunenko, A. Opalińska, J. Fidelus, W. Łojkowski, M. Zalewska, A. Kłonkowski, and D. Kuritsyn, Doped nanoparticles for optoelectronics applications, Low Temp. Phys. 35, (2008) [Fiz. Nizk. Temp. 35, 64-69, (2008)] DOI: https://doi.org/10.1063/1.3064908.