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