Post-17th-century changes of european lead emissions recorded in high-altitude alpine snow and ice - Barbante, Carlo.; Boutron, Claude.; Cescon, Paolo.; Cozzi, Giulio.; Doering, Thomas.; Ferrari, Christophe.; Gaeggeler, Heinz W.; Rosman, Kevin.; Schotterer, Ulrich.; Schwikowski, Margit.; Tobler, Leo.; Velde, Katja Van de.