Localized vibrational, edges and breathing modes of graphene nanoribbons with topological line defects Minggang Xia, Zhidan Su, Yang Song, Jinyun Han, Shengli Zhang and Baowen Li Eur. Phys. J. B, 86 8 (2013) 344 Published online: 05 August 2013 DOI: 10.1140/epjb/e2013-40068-5