Aine CJ, Stephen JM, Christner R, Hudson D, Best E. (2003). Task relevance enhances early transient and late slow-wave activity of distributed cortical sources. Journal of computational neuroscience. 15 [PubMed]
Habeck C et al. (2005). A new approach to spatial covariance modeling of functional brain imaging data: ordinal trend analysis. Neural computation. 17 [PubMed]