A. Yu. Plotskii, A. A. Sysolyatin, A. I. Latkin, V. F. Khopin, P. Harper, J. Harrison, S. K. Turitsyn, “Experiments on the generation of parabolic pulses in fibers with length-varying normal chromatic dispersion”, Pis'ma v Zh. Èksper. Teoret. Fiz., 85:7 (2007), 397–401; JETP Letters, 85:7 (2007), 319–322
