@ARTICLE{Spałek_D._Two_2013,
 author={Spałek, D.},
 volume={61},
 number={No 2},
 journal={Bulletin of the Polish Academy of Sciences Technical Sciences},
 pages={399-404},
 howpublished={online},
 year={2013},
 title={Two theorems about Lorentz method for asymmetrical anisotropic regions},
 URL={http://www.journals.pan.pl/Content/83708/PDF/13_paper.pdf},
 doi={10.2478/bpasts-2013-0039},
}