@inproceedings{inproceedings0e8d2d91,
title   = {Hierarchical free-vibration reduced models based upon non-linear normal modes},
author = {Mazzilli, Carlos Eduardo Nigro and Soares, Mário Eduardo Senatore and Baracho Neto, Odulpho Goyana de Paiva},
year = {1999},
publisher = {Virginia Tech},
booktitle   = {ASME Mechanics & Materials Conference}
}