1. Engineering Applications of Correlation and Spectral Analysis;Bendat,1980
2. DIN 66141, 1974.
3. Jerele, A., 1991, Some Fundamentals of On-Line Identification of the Cutting and Wear Processes, M.Sc. Thesis, Department of Control und Manufacturing Systems, University of Ljubljana.
4. Mechanics of the Metal Cutting Process;Merchant;Journ. Appl. Physics,1945
5. Contribution to the Correlation Theory for the Grinding Process;Peklenik;Trans. ASME,1964