Modulated spin waves and robust quasi-solitons in classical Heisenberg rings
H.-J. Schmidt, C. Schröder, M. Luban, Journal of Physics: Condensed Matter 23 (2011).

Spin freezing and slow magnetization dynamics in geometrically frustrated magnetic molecules with exchange disorder
C. Schröder, X. Fang, Y. Furukawa, M. Luban, R. Prozorov, F. Borsa, K. Kumagai, Journal of Physics: Condensed Matter 22 (2010).