Analytical and discrete approaches for 3D magnetic field profiling A. Djerdir, P. Hiebel, E. Voisin and J.-M. Kauffmann Eur. Phys. J. Appl. Phys., 28 2 (2004) 213-225 Published online: 30 August 2004 DOI: 10.1051/epjap:2004167