Iterative Covariance-Based Removal of Time-Synchronous Artifacts: Application to Gastrointestinal Electrical Recordings. - Jonathan C. Erickson; Joy Putney; Douglas Hilbert; Niranchan Paskaranandavadivel; Leo K. Cheng; Gregory O'Grady; Timothy R. Angeli (IEEE Trans. Biomed. Eng., 2016)