Soliton stability in a square lattice model of an inhomogeneous helimagnet A. Ludvin Felcy, M. M. Latha and C. Christal Vasanthi Eur. Phys. J. B, 89 3 (2016) 66 Published online: 07 March 2016 DOI: 10.1140/epjb/e2016-60823-2