Historical record of European emissions of heavy metals to the atmosphere since the 1650s from alpine snow/ice cores drilled near Monte Rosa - Barbante, Carlo.; Bolshov, Michael.; Boutron, Claude.; Capodaglio, Gabriele.; Cescon, Paolo.; Cozzi, Giulio.; Doring, Thomas.; Ferrari, Christophe.; Gaggeler, Heinz W.; Rosman, Kevin.; Schotterer, Ulrich.; Schwikowski, Margit.; et al.