@article{articlec84da547,
title   = {Long-term optical variability of the blazars PKS 2005-489 and PKS 2155-304},
author = {Dominici, T P and Abraham, Zulema and Teixeira, Ramachrisna and Benevides-Soares, Paulo},
year = {2004},
journal   = {Astronomical Journal}
}