Bieg, Bohdan, Janusz Chrzanowski, and Yury A. Kravtsov. 2015. “Application of Polarimetry to Test the Models of Thermonuclear Plasma and Determination the Safety Factor Profile”. Photonics Letters of Poland 7 (3):pp. 69-71. https://doi.org/10.4302/photon. lett. pl.v7i3.588.