@conference {ICASSP_2008,
	title = {A generalization of the magnitude squared coherence spectrum for more than two signals: definition, properties and estimation},
	booktitle = {IEEE Int. Conf. on Acoust., Speech, and Signal Processing (ICASSP 2008)},
	year = {2008},
	month = {April},
	address = {Las Vegas, USA},
	author = {Ram{\'\i}rez, David and V{\'\i}a, Javier and Santamar{\'\i}a, Ignacio}
}
