Assessing cortical functional connectivity by partial directed coherence: simulations and application to real data.
Laura AstolfiFebo CincottiDonatella MattiaMaria Grazia MarcianiLuiz A. BaccaláFabrizio de Vico FallaniSerenella SalinariMauro UrsinoMelissa ZavagliaFabio BabiloniPublished in: IEEE Trans. Biomed. Eng. (2006)