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  • J. Politiek and J.H. Los, A new type of surface ionization detector, Rev. Sci. Instrum. 40, 1576-79 (1969)

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  • J. Politiek and J. Kistemaker, The flux distribution of sputtered potassium atoms, Radiat. Eff. 2, 129-131 (1969)

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  • W.A. Oost, On the pressure dependence of the thermal diffusion factor for binary mixtures up to 80 atmospheres, Leiden University, 1968-12-18

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  • A. Vermeer, Excitation of ion oscillations by beam-plasma interaction, Delft University of Technology, 1968-06-26

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  • D. Onderdelinden, Sputtering of f.c.c. metals, Leiden University, 1968-05-21

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  • H.H. Brongersma, The interaction of molecules with low-energy (0 - 30 eV) electrons, Leiden University, 1968-05-13

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  • J.-B. Sanders, On penetration depths and collision cascades in solid materials, Leiden University, 1968-02-14

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  • J.F.M. Aarts, F.J. de Heer and D.A. Vroom, Emission cross sections of the first negative band system of N2 by electron impact, Physica 40, 197-206 (1968)

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  • J. van den Bos, G.J.M. Winter and F.J. de Heer, Excitation of helium by protons in the 1-150 keV region, Physica 40, 357-384 (1968)

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