1. Eversheim, W., König, W., Week, M, Pfeifer, T.: Tagungsband des AWK '84, Aachener Werkzeugmaschinen-Kolloquium
2. Kennametal TCS, State-of-the-art tool sensing for lathes, Phamphlet A 86-186 (10) H6 Kennametal Inc.
3. Komanduri, R., Reed, W.: Instrumented Tool Holder U.S. Patent No. 4,671,147 dated Jan 9, 1987
4. Ramalingam, S., Frohrib, D.A.: Real-Time Tool Condition sensing with a New Class of Sensor-Transducer System, Proc. of the Interdisciplinary Issues in Material Processing and Manufacturing, Edited by S.K. Samanta et.al. (1987) ASME winter Annual Meeting, Boston, MA
5. An on-line Method of Determining Tool Wear by Time-Domain Analysis;Yee;SME Technical Paper MR,1982