@incollection{Ravelo10,
author = {Blaise Ravelo and Andre Perennec and Marc Le Roy},
title = {Study and Application of Microwave Active Circuits with Negative Group Delay},
booktitle = {Microwave and Millimeter Wave Technologies},
publisher = {IntechOpen},
address = {Rijeka},
year = {2010},
editor = {Igor Minin},
chapter = {21},
doi = {10.5772/9012},
url = {https://doi.org/10.5772/9012}
}