http://aip.scitation.org/doi/pdf/10.1063/1.4725473 (Publisher version)
Zivkovic, I., & Murk, A. (2012). Extraction of dielectric and magnetic properties of carbonyl iron powder composites at high frequencies. Journal of Applied Physics, 111(11): 114104 (, pp. 1-5. doi:10.1063/1.4725473.