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Wang, Y. and Yam, C. Y. and Chen, G. H. and Frauenheim, Th. and Niehaus, Thomas A. (2011) An efficient method for quantum transport simulations in the time domain. Chem. Phys. 391, pp. 69-77.
Wang, F. and Yam, C. Y. and Chen, G. H. and Wang, X. J. and Fan, K. and Niehaus, Thomas A. and Frauenheim, Th. (2007) Linear scaling time-dependent density-functional tight-binding method for absorption spectra of large systems. Phys. Rev. B 76, 045114.