Obtaining Partial Atomic Radial Distribution Functions from Surface Layers of the Binary System Al-20% Ag A. H. Kadikova, Yu. V. Ruts, V. A. Sharnin et A. N. Deev J. Phys. IV France, 7 C2 (1997) C2-579-C2-580 DOI: 10.1051/jp4/1997103