Localized vibrational, edges and breathing modes of graphene nanoribbons with topological line defectsMinggang Xia, Zhidan Su, Yang Song, Jinyun Han, Shengli Zhang and Baowen LiEur. Phys. J. B, 86 8 (2013) 344DOI: https://doi.org/10.1140/epjb/e2013-40068-5