Stephan, Walter Max Planck Institute for the Physics of Complex Systems, Max Planck Society;
Penc, Karlo Max Planck Institute for the Physics of Complex Systems, Max Planck Society;
http://arxiv.org/pdf/cond-mat/9609231.pdf (Preprint)
Stephan, W., & Penc, K. (1996). Dynamical density-density correlations in one-dimensional Mott insulators. Physical Review B, 54(24), 17269-17272.