Anomalous fractional diffusion equation for magnetic losses in a ferromagnetic lamination B. Ducharne, Y. A. Tene Deffo, B. Zhang and G. Sebald Eur. Phys. J. Plus, 135 3 (2020) 325 Published online: 23 March 2020 DOI: 10.1140/epjp/s13360-020-00330-x