Using the Gottwald and Melbourne’s 0-1 test and the Hugichi fractal dimension to detect chaos in defective and healthy ball bearingsC. A. Kitio Kwuimy, T. Haj Mohamad and C. NatarajMATEC Web Conf., 241 (2018) 01017DOI: https://doi.org/10.1051/matecconf/201824101017