Pascual-Marqui, R D; Biscay, R J; Bosch-Bayard, J; Lehmann, D; Kochi, K; Yamada, N; Kinoshita, T; Sadato, N (2014). Isolated effective coherence (iCoh): causal information flow excluding indirect paths. Arxiv: Statistics/Methodology 1402.4887, University of Zurich.
Pascual-Marqui, R D; Biscay, R J; Valdes-Sosa, P A; Bosch-Bayard, J; Riera-Diaz, J J (2011). Cortical current source connectivity by means of partial coherence fields. Cornell University, Ithaca, NY 14853: arXiv: Cornell University Library.