@incollection{Ishikawa12,
author = {Takeo Ishikawa},
title = {Analysis of Natural Frequency, Radial Force and Vibration of Induction Motors Fed by PWM Inverter},
booktitle = {Induction Motors},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Prof. Rui Esteves Araújo},
chapter = {9},
doi = {10.5772/49950},
url = {https://doi.org/10.5772/49950}
}