@ARTICLE {4190,
author={J. F. Oliveira and J. C. Pedro},
doi={10.1109/TMTT.2007.908679},
journal={IEEE Transactions on Microwave Theory and Techniques},
title={An efficient time-domain simulation method for multirate RF nonlinear circuits},
year={2007},
month={November},
volume={55},
number={11},
pages={2384-2392},
ISSN={0018-9480}
}