1. Kalman Filter;Arimoto,1977
2. Fast calculation of gain matrices for recursive estimation schemes;Ljung;Int. J. Control,1978
3. In-process detection of tool breakage by monitoring the spindle motor current of a machine tool;Matsushima;Measurement and Control for Batch Manufacturing, ASME,1982
4. Sensing and prediction of cutting tool failure;Moriwaki;Bull. JSPE,1984