22,Yu Zuyuan, Masuzawa, Takahisa, Fujino M. 3D micro-EDM with simple shape electrode. Part 1:Machining of cavities with sharp corners and electrode wear compensation. International Journal of Electrical Machining, 1998,3:7~12
34,Masuzawa T, Fujino M, Kobayashi K. Wire electro-discharge grinding for micro-machining. Annals of the CIRP, 1985,34(1):431~434