Korteweg-de Vries soliton formation from a harmonic input and discrete spectral analysisSalupere, Andrus; Maugin, Gerard; Engelbrecht, JüriFinno-Ugric Days of Mechanics, June 18.-24., 1995, Rackeve : abstracts1995 https://www.sciencedirect.com/science/article/abs/pii/0375960194910065