SPIN DYNAMICS AND SOLITON MOTION IN TRANS-(CH)x M. Nechtschein, F. Devreux, F. Genoud, M. Guglielmi and K. Holczer J. Phys. Colloques, 44 C3 (1983) C3-209-C3-216 DOI: 10.1051/jphyscol:1983342