• 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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  • H.J. Hopman and W. Ott, Saturation of beam-plasma instabilities due to a flattening of the beam distribution function, Plasma Phys. 10, 315-317 (1968)

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  • H.F. Vugts, A. Tip and J.H. Los, The Senftleben effect on diffusion, Physica 38, 579-586 (1968)

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  • D. Onderdelinden, Single-crystal sputtering including the channeling phenomenon, Can. J. Phys. 46, 739-745 (1968)

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  • R. Paul and A.E. de Vries, Separation of gas mixtures in chemical equillibrium in a temperature gradient. II, J. Chem. Phys. 48, 4867-4869 (1968)

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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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