The van der Waals potential between metastable atoms and solid surfaces: Novel diffraction experiments vs. theoryR. Brühl, P. Fouquet, R. E. Grisenti, J. P. Toennies, G. C. Hegerfeldt, T. Köhler, M. Stoll and C. WalterEurophys. Lett., 59 3 (2002) 357-363DOI: https://doi.org/10.1209/epl/i2002-00202-4