%0 Journal Article %T Combined multi-electrode piercing of holes in hard-to-process materials %A Smolentsev, V %A Kirillov, O %A Kotukov, Y %J IOP Conference Series: Materials Science and Engineering %V 971 %N 2 %P 4 %@ 1757-8981 %D 2020-12-01 %~ DeepDyve