@article{Dorosz_J._Novel_2014,
 author={Dorosz, J.},
 volume={62},
 number={No 4},
 howpublished={online},
 pages={619-626},
 journal={Bulletin of the Polish Academy of Sciences: Technical Sciences},
 year={2014},
 title={Novel constructions of optical fibers doped with rare – earth ions},
 doi={10.2478/bpasts-2014-0067},
}