Semantic conditioning of salivary pH for communication. - Carolin A. Ruf; Daniele De Massari; Franziska Wagner-Podmaniczky; Tamara Matuz; Niels Birbaumer (Artif. Intell. Medicine, 2013)

Detection and Utilization of Emotional State for Disabled Users. - Yehya Mohamad; Dirk T. Hettich; Elaina Bolinger; Niels Birbaumer; Wolfgang Rosenstiel; Martin Bogdan; Tamara Matuz (ICCHP (1), 2014)