Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hasan Ocak and Kenneth A. Loparo,HMM-Based Fault Detection and Diagnosis Scheme for Rolling Element Bearings,Journal of Vibration and Acoustics,1048-9002,ASME International,2004-09-23,127,4,299-306,https://cir.nii.ac.jp/crid/1363670319187777280,https://doi.org/10.1115/1.1924636