Stief, Anna, James R. Ottewill, Michal Orkisz, and Jerzy Baranowski. 2017. “Two Stage Data Fusion of Acoustic, Electric and Vibration Signals for Diagnosing Faults in Induction Motors”. Elektronika Ir Elektrotechnika 23 (6):19-24. https://doi.org/10.5755/j01.eie.23.6.19690.