SKIN IN SYSTEMIC AUTOIMMUNE DISEASES, cilt.5, ss.185-206, 2006 (SCI-Expanded)
We point out that a peculiar annihilation of a vortex-antovortex pair observed numerically by Hertel and Schneider [Phys. Rev. Lett. 97, 177202 (2006)] represents the formation and subsequent decay of a skyrmion.