Magnetic Flux Leakage Method: Large-Scale Approximation A. V. Pimenova, D. S. Goldobin, J. Levesley, A. O. Ivantsov, P. Elkington and M. Bacciarelli Math. Model. Nat. Phenom., 10 3 (2015) 61-70 Published online: 22 June 2015 DOI: 10.1051/mmnp/201510306