First mercury determination in snow and firn from high-mountain glaciers in the Siberian Altai by CV-ICP-MS S. Eyrikh, M. Schwikowski, H.W. Gäggeler, L. Tobler et T. Papina J. Phys. IV France, 107 (2003) 431-434 DOI: 10.1051/jp4:20030333