@inproceedings{SBK:02b, author = {Q.~Su and V.~Balakrishnan and C-K.~Koh}, title = {A Factorization-Based Framework for Passivity-Preserving Model Reduction of {RLC} Systems}, booktitle = {Proc. Design Automation Conference}, pages = {40-45}, year = {2002}, month = june, address={New Orleans, LA} }