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On the basis of a geometrical interpretation of the direct correlation function of a hard-core fluid the authors propose a general expression for it that is consistent with the known results for hard rods, hard discs and hard spheres and that is considerably simple than Leutheusser's recent proposal (see J.Chem. Phys., vol.84, p.1050, 1986).
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Marc Baus (1986) studied this question.
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