Topological and dynamical excitations in a classical 2D easy-axis Heisenberg model T. Kamppeter, S. A. Leonel, F. G. Mertens, M. E. Gouvêa, A. S.T. Pires and A. S. Kovalev Eur. Phys. J. B, 21 1 (2001) 93-102 Published online: 15 May 2001 DOI: 10.1007/PL00011118