@incollection{Martins11,
author = {António Martins and José Ferreira and Helder Azevedo},
title = {Active Power Filters for Harmonic Elimination and Power Quality Improvement},
booktitle = {Power Quality},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Andreas Eberhard},
chapter = {9},
doi = {10.5772/13882},
url = {https://doi.org/10.5772/13882}
}