A Study of the “Spurt Effect" in Wormlike Micelles Using Nuclear Magnetic Resonance Microscopy P.T. Callaghan, M.E. Cates, C.J. Rofe and J.B.A.F. Smeulders J. Phys. II France, 6 3 (1996) 375-393 DOI: 10.1051/jp2:1996188