Advances in Condition Monitoring of Machinery in Non-Stationary Operations Proceedings of the Fourth International Conference on Condition Monitoring of Machinery in Non-Stationary Operations, CMMNO'2014, Lyon, France December 15-17 - Chaari, Fakher; Zimroz, Radoslaw; Bartelmus, Walter; Haddar, Mohamed (Springer International Publishing : Imprint: Springer, 2016)