Thresholds of Envelope Soliton Formation for Dipole-Exchange Spin Waves in Yttrium-Iron Garnet Films A.N. Slavin, H. Benner, K.J. Foos et T. Lesperance J. Phys. IV France, 07 C1 (1997) C1-459-C1-460 DOI: 10.1051/jp4:19971187