[1] EL-HOFY, H. Advanced Machining Processes – Nontraditional and Hybrid
Machining Processes. The McGraw-Hill Companies, 2005,ISBN 0-07-145334-2.
[2] MC GEOUGH, J. A.: Advanced Methods of Machining, New York. Chapman and Hall
[3] http://www.eod.gvsu.edu/eod/manufact/ - availability date 15.10. 2008