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PaperA grid - coded technique for recording 3 - dimensional scenes illuminated with ambient lightK. Pennington, P.M. WillOptics Communications
PaperMaking negatives and plates for printing by electroerosion. I. Physical principlesM.S. Cohen, K. PenningtonIBM J. Res. Dev
Conference paperImproved materials for fabrication of direct negatives and plates by electro-erosion printingA. Afzali, M. Desai, et al.SPIE OE/LASE 1989
