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Sagar, S P and Das, SK and Parida , N and Bhattacharya, D K (2006) Non-linear ultrasonic technique to assess fatigue damage in structural steel. Scripta Materialia, 55 (2). pp. 199-202. ISSN 1359-6462

Sagar, S P and Kumar, B R and Dobmann, G and Bhattacharya, Dipak Kumar (2005) Magnetic characterization of cold rolled and aged AISI 304 stainless steel. Ndt & E International , 38 (8). pp. 674-681. ISSN 0963-8695