Two ice-core δ18O records from Svalbard illustrating climate and sea:ice variability over the last 400 years - Isaksson, Elisabeth; Kohler, Jack; Pohjola, Veijo A.; Moore, John C.; Igarashi, Makoto; Karlöf, L.; Martma, Tõnu; Meijer, Harro A. J.; Motoyama, Hideaki; Vaikmäe, Rein; van de Wal, Roderik S. W. (The Holocene, 2005)