@article{article4e6e4154,
title   = {Adsorbate spectral density for a generalized anderson-newns hamiltonian},
author = {Oliveira, Luiz Nunes de and Yoshida, M},
year = {1993},
doi = {10.1088/0953-8984/5/33a/013},
journal   = {Journal of Physics: Condensed Matter}
}