1. Bearing noise Part 1: Analysis of rolling-element bearings;Ruffini;Machine Design,1963
2. Detection of ball bearing malfunctions;Martin;Instruments and Control Systems, Dec.,1970
3. Mechanical Signature Analysis;Braun,1986
4. Signal detection and extraction by cepstrum techniques;Kemerait;IEEE Transactions on Information Theory,1972
5. An enveloping technique for early stage detection and diagnosis of faults in roller bearing elements;Bell,1985