The paper titled “Influence of magnesium substitution on thermal and electrical properties of NiCuZn ferrites for microinductor core applications” [1], published in Physics Research International, has been retracted as it is found to contain a substantial amount of material from the paper “Studies on AC and DC electrical conductivity and thermoelectric power of NiMgCuZn ferrites” already published in International Journal of Nanoparticles, vol. 3, no. 4, pp. 349–366, 2010.