Proceedings of the 4th International Conference on Electrical Engineering and Control Applications : ICEECA 2019, 17–19 December 2019, Constantine, Algeria - Bououden, Sofiane (Herausgeber); Chadli, Mohammed (Herausgeber); Ziani, Salim (Herausgeber); Zelinka, Ivan (Herausgeber) (Lecture Notes in Electrical Engineering, 2021)