(en) R. Scott Rowland, « Intermolecular Nonbonded Contact Distances in Organic Crystal Structures: Comparison with Distances Expected from van der Waals Radii », Journal of Physical Chemistry, vol. 100, no 18, , p. 7384–91 (DOI10.1021/jp953141, lire en ligne [PDF]).
(en) R. Scott Rowland, « Intermolecular Nonbonded Contact Distances in Organic Crystal Structures: Comparison with Distances Expected from van der Waals Radii », Journal of Physical Chemistry, vol. 100, no 18, , p. 7384–91 (DOI10.1021/jp953141, lire en ligne [PDF]).