Van, Mien; Kang, Hee-Jun: 'Bearing-fault diagnosis using non-local means algorithm and empirical mode decomposition-based feature extraction and two-stage feature selection', IET Science, Measurement & Technology, 2015, 9, (6), p. 671-680, DOI: 10.1049/iet-smt.2014.0228
IET Digital Library, https://digital-library.theiet.org/;jsessionid=8nl9i6skfllln.x-iet-live-01content/journals/10.1049/iet-smt.2014.0228