On Applying Approximate Entropy to ECG Signals for Knowledge Discovery on the Example of Big Sensor Data. - Andreas Holzinger; Christof Stocker; Manuel Bruschi; Andreas Auinger; Hugo Silva 001; Hugo Gamboa; Ana L. N. Fred (AMT, 2012)

On Interactive Data Visualization of Physiological Low-Cost-Sensor Data with Focus on Mental Stress. - Andreas Holzinger; Manuel Bruschi; Wolfgang Eder (CD-ARES, 2013)