Nitrate stable isotopes and major ions in snow and ice samples from four Svalbard sitesVega, Carmen P.; Björkman, Mats P.; Pohjola, Veijo A.; Isaksson, Elisabeth; Pettersson, Rickard; Martma, Tõnu; Marca, Alina; Kaiser, JanPolar Research2015 / art. 23246 https://doi.org/10.3402/polar.v34.23246 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS