Lomonosovfonna and Holtedahlfonna ice cores reveal east–west disparities of the Spitsbergen environment since AD 1700Beaudon, Emilie; Moore, John C.; Martma, Tõnu; Pohjola, Veijo A.; Van de Wal, Roderik S. W.; Kohler, Jack; Isaksson, ElisabethAnnals of glaciology2013 / p. 1069-1083 : ill Sea ice dynamics influence halogen deposition to SvalbardSpolaor, Andrea; Gabrieli, Jacopo; Martma, Tõnu; Kohler, Jack; Björkman, Mats B.; Isaksson, Elisabeth; Varin, Cristiano; Vallelonga, Paul; Plane, John M. C.; Barbante, CarloThe cryosphere2013 / p. 1645-1658 : ill Svalbard ice cores studies threatened by rapid climate warmingIsaksson, Elisabeth; Divine, Dmitry V.; Gallet, Jean-Charles; Kohler, Jack; Martma, TõnuGeophysical research abstracts2019 / p. EGU2019-7727 https://meetingorganizer.copernicus.org/EGU2019/EGU2019-7727.pdf