1. “Transformation of C_70 peapods into double walled carbon nanotubes”. Launois P, Chorro M, Verberck B, Albouy P-A, Rouzière S, Colson D, Forget A, Noé L, Kataura H, Monthioux M, Cambedouzou J, Carbon 48, 89 (2010).   http://doi.org/10.1016/j.carbon.2009.08.035