@article{892316, author = {Rui-Hua Xie and Garnett W. Bryant and G Sun and M Nicklaus and V Smith and Y Araki and O Ito}, title = {Excitations, Optical Absorption Spectra, and Optical Excitonic Gaps of Heterofullerenes: I. C60, C59N+ and C48N12}, year = {2008}, number = {120}, month = {2008-10-16 14:10:14}, publisher = {Journal of Chemical Physics}, language = {en}, }