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

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  • D.K. Gibson, J.H. Los and J.H.F.M. Schopman, Angular dependence of collision-induced excitation of H2+ ions, Physica 40, 385-398 (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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  • J.W.R. Fennema, A comparison between the parametric treatments of ion-atom collision for low and high impact velocities, Physica 40, 339-346 (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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  • G.A. Stevens, Transport properties of methane, Physica 46, 539-549 (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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  • L. Vriens, J.A. Simpson and S.R. Mielczarek, Tests of born approximations: Differential and total 23S,21P,and 21S cross sections for excitation of He by 100- to 400-eV electrons, Phys. Rev. 165, 7-15 (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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  • G.A. Stevens and A.E. de Vries, The influence of the distribution of atomic masses within the molecule on thermal diffusion: II. Isotopic methane and methane/argon mixtures, Physica 39, 346-360 (1968)

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