@article{articled59d9f84,
title   = {Generalized numerical renormalization-group method to calculate the thermodynamical properties of impurities in metals},
author = {Oliveira, W C and Oliveira, Luiz Nunes de},
year = {1994},
doi = {10.1103/physrevb.49.11986},
journal   = {Physical Review B}
}