Energy transport of circularly polarized waves in bi-kappa distributed plasmas Tajammal H. Khokhar, Imran A. Khan, Hassan A. Shah and Ghulam Murtaza Eur. Phys. J. D, 74 5 (2020) 95 Published online: 12 May 2020 DOI: 10.1140/epjd/e2020-100473-3