Magnetic field fluctuations in an array of randomly directed circular currents V.D. Anagiannis, Y.F. Contoyiannis and F.K. Diakonos Eur. Phys. J. B, 86 11 (2013) 460 Published online: 07 November 2013 DOI: 10.1140/epjb/e2013-40852-1